For now on, I'm going to start getting lamps, gear, and fixtures off ebay.
So far, I've bought my only HID fixture on eBay, and I intend to continue for any future purchases, because I prefer to have commercial/utility quality fixtures over what is sold in home centers. Even though I'm glad they're still available to buy. On the other hand I've bought my photocells and lamps at Lowes and Home Depot, because they're just fine for my needs. Plus Lowes had great deals on the Sylvania lamps which I hear are still pretty good quality.