No you aren't crazy.

Occasionally I will buy something online on an impulse. Normally because it's severely discounted (over 50% off).

When I need something or am saving for something I go to my local shop. By the time I factor in the added shipping cost + some value for my time and headache to get it all working (assuming it's parts) + the 15% discount off everything in the shop (club discount) the shop isn't any more expensive. Plus they are awesome people and my bike always runs flawlessly (something I doubt I could achieve myself).

The last thing I bought online (and the only thing this year, excepting some shorts I got from REIoutlet at an absurd deal) was actually 2 TE jerseys, because I liked them and obviously I wasn't going to get them at the local shop. Everything else has been ordered through the local guys. I haven't felt like I've been had or could have gotten it ridiculously cheaper somewhere else yet.