I started off by looking at used ones, but finding a good color, moon roof, 6 speed, etc, got me to check out a new one with options. I'll still look at used ones. I have a deposit on a Prius C at $24K, as originally I wanted a car with good mileage. They are scarce at the moment so I still have a couple weeks minimum to browse.
I looked at hatch WRXs, but the mileage isnt what I wanted, and the same with the Challenger, although I will eventually get one. The RT pushes the price to around $35K with no extra options, and that is starting to eat into house down payment territory. The Cooper S seemed like a good compromise between fun to drive and practical. The Focus ST with premium electronics will probably come in around the same price. Anyways, nothing is set in stone at this point. But if I were to get a used Mini and loved it, I know I'd regret not getting it new.