X-Wing is a expensive game. Yes I know it cost less then Warhammer but still, no everyone can't afford to buy a lot of modeles, like you.
Micromachine. Known for ages for toys you wanted to buy as a little kid but didn't have the money. Micromachines has a lot of Star Wars minifigures. From X-Wing to Tie Advance. Believe it or not - they fit with X-wing miniature game. Sadly you have to glue or gum them. But still, the option is there. Also the price for 4 models is the same as 1 X-wing miniature expansion. They look more cheap but are harder to break. Made by same material as a rubber.
Also, question to FFG. Okay to use Micromachine Star Wars models in tournament? I mean, it's Star Wars so...





