Why?

Two examples from the last 2 weeks:
1. I bought some 26x1 3/8 tires off Amazon to replace 16x1.75, as I wanted a slightly narrower tire on an older tandem. Couldn't figure out why the hell the tires didn't fit. My LBS owners just smiled, explained size differences, and ordered the right size for me.
2. "Do you have any spoke wrenches?" "Here, take this one. It just laying around in the back. No charge."

I've never bought a new bike from the LBS. I'm definitely not a big spender, as most of my bikes are off Craigslist and I rebuild/repair what I can on my own. But they happily fix what I can't and offer advice when I'm stuck.

There's also the plus of supporting a small, local business.