I purchased my Samsung CLP-300 from Staples a couple of years ago. It was a steal (back then) because Best Buy was advertising it for $199. They were sold out, but Staples honored their price match guarantee and I got it for $194. At most places it was at least $249.
I don't use the printer all that much, but I have gone through a couple sets of toner cartridges. Anyway, I also have emptied out -- shaken, tapped, wiped, etc. -- the waste toner cartridge at least three times now. I'm unsure if there is any advantage to buying a new one. From what I've seen, they cost around $10-$15, excluding tax and shipping. I have noticed no deterioration in print quality, either black or color, from emptying and reusing the waste container. But I have been advised nonetheless that I should "eventually" get a new waste toner cartridge.
Does anyone know if there actually is a certain "limit" regarding how many times the waste toner cartridge can be emptied and cleaned... before you really do need to buy a new one? Or can you just keep emptying out and reusing the same one indefinitely?