AEG's and GBB's are just tools.
If you have the money to play, come.
Hell, half the time I'm at an airsoft event, I'm talkin guns. I spend alot of the time off the field.
You WILL have an underpowered weapon, but it still shoots. You don't have to play smaller games first either. Just grab your Nearsoft, and head out on the field. Fire at the enemy.
You will have fun, no matter what. You'll just have fun with a shitty gun.