This is the actual answer. Why rent when you can own. The beefy GPUs of today will still carry their weight years into the future. If you take it even remotely seriously you'll save money and have resale value
Because you’ll probably be only be using it for a small fraction of the time you have it, so sharing can be much more cost effective depending on how much you use it
I dropped a couple hundred bucks on a GPU years ago. It's done a lot of work for me and has years to go. True if you don't plan on using it no point in buying it. Same goes for literally anything
This is a very silly question... the answer is the same as with virtually anything else: real estate, transportation, wedding dresses...
I mean, you need to compare the price that will ultimately depend on the kind of thing you are doing... that's all. Sometimes it makes sense to rent, other times it makes sense to buy. There's no one right answer.