I buy all my clothes from op shops. Having said that, I only get things that look new or very little wear. The same with Bub's clothes. If anything has a mark on it, I try to figure out if I think it would come out in the wash, if yes, then I buy it.
I can't justify to myself buying one top for $25, when I could get four or five for the same money. Or jeans for up to $80 or $100, when I buy them for $7 or $8, if that. The only thing I don't get from op shops is underwear and sometimes shoes.
Clothes for the Man or Boy usually don't come from the op shop, purely for the reason that I don't look for clothes for them as much as for myself and Bubs. A bit selfish of me really.
So, any new clothes they (or I & bubs) get come from BigW, Best and Less, Kmart, or Target, when they are on sale. Last week I bought an outfit (pair jeans, shirt, and jumper) for the Boy from Best and Less and it cost over $100. I couldn't believe it, since I normally op shop. However, if I do buy something 'new' its usually only one thing at a time. Last week I also bought I pair of high heels from BigW (primarily to go to my Dad's wedding) for $5, which I thought was terrific.
Anyway, I get complimented on how I dress, and also Bubs, so I don't think I'll change my ways yet. Its an individual thing though.