I agree very much with the people above.
I would also add that, for some of us, Online classes like SV or the use of DVD's are the only option we have. There are no pole studios where I live! I was lucky enough to have one for a little while, but now all of my workouts are at home.
I find that my home workouts were, in the beginning, difficult to structure- which is a point in the favour of a studio, as your workouts should be structured for you.
However, when I actually do take the time to set down a structure, I am able to change it if needed. If I recently had a kick-ass arm workout at the gym with a friend, I can change things up with pole to work on my core, instead. I also can take time doing the things that I enjoy most at the moment- if I've really been enjoying my freestyle, I can allow it to go on longer, and if I'd rather just get to the boring workout portion because I'm not feeling creative, I can do that, too.
Social time IS provided with studio lessons, so if that's important to you, then definitely a plus on the studio side.
I tend to be rather shy (especially when it comes to the grande and creative movement of my body, from which I feel very disconnected), so multi-person workouts are a little difficult for me to be comfortable with.
Studios often have hardwood floor, which can feel a bit uncomfortable on the knees when you're doing floorwork, but if you enjoy wearing shoes, are awesome- far, FAR preferable to carpet, let me tell you!
Studios may have different names for moves, which can get confusing when connecting with people online who have other different names for moves- you may not know what your friend can do, and they may not know what you can do, without pictures or video. Also, studios may be more creative with their combos... or, they may not, and may not have ANY combos or indication of "dance" at all (being all about tricks, for example).
Whereas at home, you'll have to figure that stuff out on your own!
Studio may go too quickly for you, or... it may push you harder than you would push yourself at home, and encourage more growth (obviously within reason).
It's all about what you need and want from your workout! Try a bit of both, and see what you like best :)