Would you rather have 5050 people playing your game, or only 50? You can't assume that just because 5000 people P2P'd your work that you lost those people as sold customers. To be fair, the number of real customers would be between the 50 and 5000, but probably much closer to the former than the latter.
Anyway, you should create your game because you WANT to create your game. There's no guarantee that even 50 people will buy it much less 5000.
If you want guaranteed funds, you need to provide a service instead of a product. Otherwise it's just a gamble.