Sometimes comin out in duos or groups is better, gives you a lil boost at experience and puts you out there for a while. And the fans might feel you and anticipate a solo release, and when you finally drop one you got a better chance at decent sales. Shit wont flop as easy as if you dropped about 10 solo albums and shit still not gettin out there. Other times droppin a solo album could be better if you known for battles and underground shit, rollin with a crew or some shit. Some ppl might wanna hear more from you.