I've been looking for a really cheap bike to commute to my high school with (a 15 minute ride on the sidewalk?) and I don't want to spend too much money on another bike that could easily get stolen. I already own a nice mountain bike (never failed me) and a joyriding BMX. I was thinking about getting a 50-60 dollar bike at Walmart JUST for school... so would a Walmart bike work for this? Or are they so bad that I should just skip them? Thanks.