You can now get all of your forever wedges. The Titlest 56, 60, and 64 degree wedges
Along with other advice, just taking the time to learn all the shots you can play with those wedges should keep it fun and interesting for quite awhile.
It depends on what you want out of playing this game, but if becoming a real good player is something you want, you still have a lot to learn. Learning to play different type shots in different situations can be a lot of fun. After nearly 7500 ranked rounds, I still find it fun to try new shots and to find a better way to play.
Like others have mentioned, there can be a lot of fun playing multiplayer games and other formats as well. If you look around, there are tons of fun ways to play this game. Many country clubs have a lot of fun things happening and have added fun with the communication within the club.
You can also play on the S S WGT Tour if you like. Follow that link for all you need to know. It is nothing terribly exciting, but adds some communication with others and a sense of community. A new tournament just started this week.
EDIT: Forgot to mention... That Tour uses handicaps. So it gives new players a very good chance at success.