When we moved in four years ago (4.5 years?), LEDs were still expensive, so my study bulbs cost me $30-$40 each. Now they would cost $10 each.
There's a few noteworthy places that the LEDs must replace: the bedroom lights. Those higher lights just don't do their job, and those CFs have to go. There's also a CFC in the lamp by the table.
I want to replace the long florescents in the kitchen, but that's not happening anytime soon. Too much wiring. I should get practice rewiring the basement lights first before I head upstairs.