Don't spend the bank on a nice, shiny, new aluminum CO2 cylinder when setting up your kegerator before you go to the local gas supplier. Turns out they only do cylinder exchanges; getting my personal cylinder back could take up to a week "in the factory" to get it filled. And even then it's "you know, sometimes cylinders get lost in the factory, and stuff..."
Insult to injury: Their price on a 5# cylinder (FULL) was $15 less than the cost of my cylinder from morebeer.com. Add in the $22 fill charge for the 5# cylinder, and that's about $37 + tax down the tubes. Fu*k.
I had plans to have an anti-siphon tube installed to be able to lay the tank on its side in the bottom of my kegerator next to the compressor hump. So much for that idea. My backup plan mounts it pretty high and out of the way, so it's not all doom and gloom.