They also have a terrible flicker awful for human biology. Check out what Jack Kruse has to say about artificial light at night.
Discussion
Some do, some don't. Not necessarily according to price, but it's more likely that known brands like Philips and Osram (now Ledvance) are flicker-free, or close to it. (They also generally last longer.) I can see the worst offenders just sweeping my gaze across the room, but some people seem to be completely incapable of detecting it, even with tricks like waving a pen.