only read the OP, but sounds to me like the child might know mum cares but on the other hand won't know the value of money, & will grow up to be a spoilt brat. (i'm speculating of course!)
I buy from ebay charity shops MN hand me downs etc. it's all helping each other out isn't it?
DS has one or 2 good sets of clotehs the rest are play ones - why spend £15 on a pair of jeans when a £3 pair in tescos do the same job? and I wouldn't care if they got wrecked! (well as much!)
I do buy Brand new shoes, bedding, towels, and mattresses thou that's the only vice I have, not so bothered about the rest of it - oh and car seat.