asongforXX: __$ ca marche aussi en anglais

C'est seulement moins commun.
I buy singles mainly for the b-sides and for the instrumentals. Though I would buy the single only if the b-side is great and isn't included in an album or if the single version of the a-side is different from the album version (For example, Ayu's Endless Sorrow). I'm not a collector buying each single released by an artist.
[EDIT] Sorry for the French part