Buy nursing shoes for nursing school clinicals?

Hey guys!
I'm starting nursing school next year and I have a question for all of you...
For our clinicals I have to have an all-white shoe with a closed toe and heel. I've done some looking and haven't really found anything I like all that much (as far as nursing shoes) and the price is so steep especially with all the other things I have to buy for school. Should I really invest the $150-$200 in shoes I don't like just for clinicals?
I was thinking I would just buy some cheap white tennis shoes from walmart or something for school then when I graduate I can get some more expensive shoes that I really like (that don't have to be all white ). Our clinicals are only 6s or 8s anyway so that shouldn't be too bad, right? I really want to be comfy but it is worth it right now?

TIA for any input!