The longevity question is asked on Kel-tec boards once in a while, seems most people agree they have never heard of a completely shot-out gun in kel-tec's 14 year history. And, If you do happen to shoot it so loose it doesnt function properly, Ive also read quite a lot that Kel-Tec will rebuild the whole gun, new frame and all IF it was to come down to that. Their customer service is noted as second to none. I havnt had to deal with them yet, well beyond ordering a spare mag and grip extensions for my P-11, which I have yet to shoot (just got it tuesday, too cold out).
Sure, Kel-tec's aint nothin pretty, but they are built well and serve a general purpose: Concealed Carry. Their rifles intrigue me, especially the Sub2000... When they make a Sub2000 in .45acp, ill buy one. If it comes down to a survival situation, my 1911 is gonna be my main sidearm.
As for reloading, I dont think too many manufacturers recommend it. How many of us does that stop?