Yeah, that's not what I meant at all. Of course, support games that you enjoy. It's possible to enjoy a game that is only a year old, and only makes $100 or $1000 per month. Of course, support someone who has been around long enough that they aren't going to go MIA in a month. "New" content creators frequently have enough content in their games for a few hours of gameplay. When I say "new", I don't men "joined yesterday"!
I'm talking about people who have some support but aren't rich yet. Personally, I choose not to donate money to people who have more money than I do. You're welcome to make rich people even richer if you want, but I prefer that you support struggling artists.
And no, paying for personal entertainment and supporting charities aren't two entirely different avenues of spending. You have some disposable income that you want to give to someone deserving. Someone who made a game that you like is deserving (if they aren't already making more in a month than you make in a year). Charities are also deserving.