Whenever an incandescent flood or spotlight goes down we replae it with CFL versions that we buy at a fairly reasonable price from Costco. Several of these are on every night, all night and I have only had one burn out in seven years.
We also have a number of the 'curly-Q' CFL's in normal lamp-type use. They have been lasting years as well. Ideally, I'd like to replace them with LED's as that technology has been getting better and the prices are finally falling. But, they haven't fallen far enough to justify a switch-over. As one can now buy a decent 60" flat-screen TV for a grand, there is definitely "hope".