I bought these bulbs on the same day almost 2 years ago and have used up the entire 20 pack in that time. I first replaced about 10 burned out accent lights under the cabinets and have replaced them in various places over the past two years. Now if I left these bulbs on 24/7 for 2 years, that would add up to 17,520 hours of use. These lamps were only used on a small scale (2-4 hours a day, maybe 5 times a week, that's 520-1040 hours a year). So I think if the low price is worth it because you change bulbs from time to time and just buy them again when you need more, go for it! I'll look around for a more reliable lightbulb and hopefully won't have to change it anytime soon.
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