I felt the same about the sterling so got a prop version as it would likely be a wall hanger anyway.
The main focus for my collection was British, then the L85 bug hit so now have 6 which took a 'step to the right' to other bullpups and spiralled out of control to the point I now display mine as... snipers, vintage, SMG's, bullpups, PDW's (with a pulse rifle(why not)), G3's & G36's, AR15 variants, battle rifles & AK's with bits n bobs added for fun. Got a couple of LSW's and UGL's. not a big fan of side arms but even they seem to be multiplying.
Basically I collect what takes my fancy.