They pop up from time to time on E-bay, but I can attest personally that for the Florida the bidding wars get rather vicious in the final minutes--especially if the ending time falls on a Friday or Saturday.
I once put a *ridiculously* high bid on a Florida to act as protection against the usual ending time snipers, then watched in the last minute the previously untouched bid suddenly kept climbing. In those 60 seconds the price skyrocketed from the current 100+something bid to well over my 200+ "protection" bid.....
"Sorry you didn't win this item."
Really, I'd recommend Thailand shops. There are at least a couple with great prices and good reputations. Even if you pay EMS+phytosanitary certificate (which I also recommend) you are STILL paying way less than what you're likely to encounter on e-bay+no bidding wars to deal with.
Probably for the variegated Monstera too.