Honestly, I think that's at least half of what the actual sales would be if they re-released it.

Perhaps I'm too optimistic, but given how many people who played the game at some point back in the '90s or early 2000s, and how many people would hear about it if Epic started releasing their older games starting with Jazz, I think it would sell really well. Especially when you think about all the game journalists who played it way back when, who would report on it.