If we can't upgrade later but have to choose now, what about asking the community if they'd want to buy the enterprise version? Just let ppl donate through paypal and see if chat users care enough to contribute and pay for it?
Donating all extra cash to Element game development is definitely better. I wouldn't want this chat project to take money out from that. Besides, I will include that ad we have there now, which will generate pennies and hopefully in time pay for the chat software we now buy.
The issue is not where to get the money, but whether or not getting the enterprise version is a smart move. We could use that extra money to buy something else, like some awesome commercial plugin for our server, or maybe just donate it to Elements development.
No word from the developer just yet. I will wait for a couple of more days.