Obviously, according to the Betteridge's law of headlines, the answer is a resounding NO.
But let me tell you the pros and cons if you're still looking at getting one.
The workflow is extremely different
Watching someone use a stand mixer on YouTube is like watching a cleaning advertisement with a smiling host. It's absolutely not reflective of real life. If you're thinking of getting a stand mixer because it looks so effortless (it'll do all the hard work for me!) and you won't have to baby your mix, think again: it's just a different process. Here's what you absolutely need:
This spatula (and you better get a long one) is your new best friend. You're absolutely stopping the stand mixer every now and then to lift the heavy motor up and scraping the sides. This is an integral part of the process. You'll do it once or twice between every step in order to get things to mix properly.
I'm aware there's a Flex-Edge beater that apparently will do the scraping for you, but I've never used one, I don't know anyone who has one, and if none of the chefs online are using it, it probably tells you that it's not worth it and they still have to scrape the bowl regardless.
It's heavy. It's REALLY heavy.
The KitchenAid medium stand mixer is 12 kilograms (26 pounds). There's a reason why most people just leave it on their kitchen counter. But do you have enough counter space to just leave such a big machine lying around? And you better make sure it's against the wall and not on the edge where someone might bump into it and drop 12 kilograms of stainless steel and motor onto their feet -- or worse, a child.
So if you're going to have your stand mixer stowed away in a cabinet or a cardbox box (like me), do you think you'll actually use it? Or will you not bother because it's not worth the effort of even taking it out?
The motor is actually kinda scary
All these recipes will have you run the stand mixer on LOW or maybe MEDIUM if they're feeling frisky. The low setting on a stand mixer is basically medium to medium-high for a hand mixer. You don't really understand its sheer power until you use one. I'm usually very careful and definitely wary of any appendages near the mixing bowl.
BUT
You get some amazing results because of the sheer power of that huge motor. I mean, look at this image right here from Claire Saffitz's Youtube Video:

That is a wet ingredient mix of peanut butter, butter, and dark brown sugar. But LOOK HOW LIGHT IT IS! I have made this recipe multiple times with a HAND mixer and I have never been able to whip the wet ingredient mix that light and fluffy. I've always ended up with something akin to this colour, no matter how hard I try:
But the moment I used a stand mixer for this recipe, it whipped it perfectly in less than half the time it took me to cream the butter and sugar with a hand mixer. 
Just in case it's not clear, the above photo is meant to show the colour and consistency of when I make the same cookies with a hand mixer. I stopped the stand mixer early on purpose to show it.
It takes time to learn
When you start out, your baking process is going to run twice as long. This is normal. You won't know what to do, you'll be watching the stand mixer the entire time, you'll be scraping down too much or too little, and you'll be jittery operating what is pretty much heavy machinery.
You'll make mistakes. You'll forget its raw power and just turn it on instead of pulsing the wet and dry mix so you'll end up spraying flour all over your kitchen counter. It's also really easy to over mix and over whip. There's a reason John Kanell from Preppy Kitchen recommends you start with a stand mixer but finish whipping cream/egg whites with a whisk to get it to the consistency you want.

BUT
Once you learn it, the process ends up being faster. While the stand mixer is running, I've got both hands free to start cleaning up the kitchen. And the stand mixer's bowl is surprisingly easy to wash too - it's just a bitch to dry because it's so big.
Overall Thoughts
Ultimately, I would never recommend a stand mixer to someone who doesn't at least bake once every few weeks. It's a hefty investment, takes up a LOT of space, and extremely heavy too. I currently have to move the stand mixer back to its original box behind the sofa every time I'm done with it, and there are certain recipes that are far too short and easy to do with my hand mixer that I don't even bother considering a stand mixer.
You have to remember: anything you can do with a stand mixer, you can do with a hand mixer too.
Am I glad I have one? Absolutely. But I got it on clearance prices and even then I felt it was too expensive. 
That probably tells you a lot.
