Looking to get into X-Wing here shortly but need to budget. For those of you who've played a bunch how much would I be looking at spending to get a good sized faction going with a few options at 100 points?

Is it recommended to get the base set? Or could I get away with picking up individual pieces.

From what I've figured out, I'm probably looking at 100 bucks which includes the base set.

-Cheers!