If you're approved for an apartment, are you expected to take it?

I was approved for a one year lease on an apartment I really love. It was a little bigger than I need, and a little out of my price range, but I thought I might be able to meet customers there and do away with my office in midtown. From talking to my customers, though, this won't work. I haven't committed to it yet, but is it considered bad to request another, lower-priced apartment that the same broker showed me? Will I get the stinkeye?