I want to fashion shop for a freaking suit. It can be a very nice experience. If you're fashion shopping to begin with, you must have a reasonable amount of disposable income. Why not spend it on a nice suit and accessories - shirts with French cuffs, stylish cufflinks, single piece leather shoes.
I bought a Gieves and Hawkes[1] suit for my wedding, and the whole Savile Row[2] experience was wonderful.
I don't need to wear a suit every day, or even every month, but if I find myself in a situation where I do need to, I know exactly where I will be shopping for one.