The only downside of regularly going to a small shop is that they quickly learn how to "poke" your geek factor, making you buy even more stuff! But at least it's the kind of stuff you can actually use -- most of the time.
"A water cooled system?"
"You don't really need it. Cooling fans will work just as well. But watch what happens when I add some fluorescent dye to the water and turn on the black light."
Watch my future television channel's public test broadcast!