Maybe so for you pal, but I have NEVER got one to last even 6 months and at 10 times the cost, I am not about to replace all my lights. I do use them in the kitchen as the fixture is high up and a pain to change. They do last longer then the regular bulbs but at 10 times the cost, are not a solution for me.
I know research on FR has shown that incandescent bulbs have essentially an infinite shelf life.
So if you can find them, and have storage space, you can load in few decades supply.
Our local WM in Indiana still has a full selection of incandescents (not sure for how long).