You always have good poker domains, evermore. I've never been able to sell a .net poker domain name for more than $1,000, and it's always been to the person who owned the .com. But several of my .net poker domains make more than that parked. I think .net is a hard extension to really develop because I very rarely see a .net in the top 10 results on google for ANYTHING... and anything you develop on it is going to have a good amount of spill traffic over to pokerflop.com. One of these days I think they'll stop weighting .coms so heavily and .nets will see a nice rise as a real development alternative.
PokerFlop.com is just parked, so chances are slim you'd be able to sell the .net to the owner for anywhere close to what it should be worth... but if the domain makes the .com owner some money, which it probably does, the .net is going to be valuable to him. That's your best bet, imo... to email the owner of the .com and see if he'd sell his domain name or alternatively buy yours.