Oh, stop it!

I did decide to buy locks for my Thule bike rack once I got my "moderately expensive" bike, but I hate to think of needing to have a bike lock WITH the bike when I'm on a trek (no pun intended!) somewhere. I will say, however, that even with my old(er) relatively cheap bike, I would try and park it where it was visible to the checkout counter of any place I stopped along the way...