I'm one person who will pretty much always pick self parking vs. valet whenever I have the option. I don't like other people driving my car. I don't like not knowing where my car is. I don't like having to wait to get my car back. I am young enough and able-bodied enough that walking whatever distance from the parking lot isn't an issue thankfully. If and when that changes, I'm sure I'll change my view but for now, if I can park it myself, I will.