Bought one, already, to replace a bulb in a really hard-to-get-at fixture at Mom and Dad's place. Was worth the expense, so that I didn't come over there to find Dad teetering on one foot at the top of a 10-foot-ladder, balanced on a phone book, resting on a chair, etc etc etc to replace the bulb. "I just don't like to bother you.", he said, like falling and breaking his neck wouldn't be a bother, too.
But, I digress. At $40 or so a pop, I'm not buying them anytime soon for every other fixture in the house.
I see your point. We have a ceiling light over our inside staircase, and it's a real pain to get to. I don't have a tall ladder, and I'm scared of heights, so I moved a floor lamp to one corner of the landing.
When we're out of here (hopefully by the end of this year), the landlady can worry about how to replace that bulb.