When we bought our clown house nearly five years ago, we didn't pay much attention to the lighting (hot market + bidding war + it's three blocks from DH's work). We were shocked when we got our first utility bill. WTF? We set out to count, then replace all the bulbs in cans. Gulp. 120 can (pot) lights, most on dimmers. At the time, dimmable LEDs were not readily available and they were damn expensive. We spent $1200 at Home Depot to replace them all. Then we were thrilled/horrified to watch the prices plummet. Still worth it in the long run. The only fixture we couldn't outfit with LEDs was in the dining room. The bulbs were all too tall and projected the light upward. After many tries, we settled for halogen until we finally found bulbs that worked just last year. Our bill went down again 'cause we use that fixture every day and it has nine bulbs.
Since the prices have dropped so much, we have put them in our rentals as we rehab them. We buy the Costco can lights and the new flourescent-type bulbs for the shop lights in the garage.
The point of sharing this tale is to say that I consistently see them at the Dollar Store these days. For $1.00, we've replaced everything without a second thought.
We offered all the old bulbs free on Next Door and they were gone the same day.
Finally, they do burn out prematurely. We kept our Home Depot receipt and exchange them when this happens. IIRC, the brand is Felt, which DH tells me is pronounced "feet", which I think is funny.