Your getting that interest because it looks like a steal. Ultimately those businesses couldn't care less about $50/m (except to chance it) but they want - or even need - the enterprise terms.
They will pay $50 for your product... And probably $950 for the terms.
(Not saying that would have been the right thing for you but my advice to folks who find themselves in this position is always 20x or 40x the price - if that is enough to make it worth your bother, then go for it. Good chance theyll pay)