It always sounds good on the forums to say "Play a support and you'll always get a party." In game it simply doesn't work that way. This is especially true if you have a 50b budget. How are you gonna get to 110? How are you gonna make ANY adena? How are you gonna XP for the 95% of the time you CAN'T find a party? If you come back to game with a set group of friends who is starting a CP then sure, go support. Or, if you can join a highly active PvE clan which will even take a 105 support toon you "might" be able to level somewhat effectively. If you find yourself in either of these two scenarios and you want to play a support toon then great! I'm glad for you.
Beyond that.... as others have suggested, go Evis (or Maestro). With 50b you can gear out enough to solo effectively. You'll be able to solo Storm, Crisis, and eventually PI/IoS (if you cant kill extremely fast, PI isn't worth it). During drop events and double adena events you'll actually be able to make $$. In all honestly, you will eventually hit a wall but, you can get to 110 on an Evis in mostly exalted gear (I've done it).