As laser printers push inkjet printers out, HP (the inkjet supplies market leader) will likely see a decline in its inkcartridge per printer sales until the shift away from inkjet stabilizes.
You could throw it like a small javelin, or stab it into a piece of steak instead of using a fork, or you might take the inkcartridge out of the pen and fill the hollow shell with sand (just because you like sand).
It is a user replaceable part and they expect the consumer to replace it when they have burn through it. (think ink-jet cartridge) These TVs are not designed to be on 6-8 hours a day but if you are going to buy one and use it as a primary TV, make sure you know how many bulbs the warranty will replace.