I'm fairly serious when I mention I'm tempted to open my own shop. I walked into Radio Shack today and started digging around their woefully inadequate parts section when one of their staff came up and asked if they could help me find something.
Me: "Yeah, I'm looking for a 16 MHz crystal. Where would I find that?"
Them: "That's the thing that makes those radio scanners work, right? No, we don't carry that old stuff any more."
They did, however, have green LEDs for a buck fifty each. To put things in perspective, the Jameco price is currently $0.088. Eight point eight pennies. Buy a hundred and you knock off a penny each.
100 green LEDs at Radio Shack: $150
100 green LEDs at Jameco: $7.80 + probably about $5 shipping.