If you like snazzy designs, the ones at Foska are at the top of your price range. They're good quality and the prints don't fade. At the other end of the scale, I have a vest from Decathlon that cost about a fiver and is just fine.
Not true. I've got a foska vest, the white bits went a manky grey colour after only about 4 years of wear, only another 4 years since then and I'd never wear it now, complete waste of money.