I currently have an 18 ga nailer and have thought about getting a smaller gauge also. How does the 21 ga stack up vs 23 ga?
I'm not sure what sort of projects I'd be looking at with either one. Guess what really got me started thinking along these lines is the 21 ga nailer that Woodcraft has on sale currently for $80 (vs $130 regular price).
http://www.woodcraft.com/family.aspx?familyid=5178
I almost said maybe I don't need either one, but figured I didn't dare say that here - or all I'd here is "you can never have to many tools".