That would not surprise me at all. The quickest way to create a flourishing black market is to ban something people want.
But again, and this is only my memory, it was the 60 watt bulbs that got banned and the 75 and 100 watt bulbs either weren’t banned or the ban started much later.
My own theory is that a lot of people bought into the hype and jumped over to CFLs early on after the band was announced. Add to that that this helped cause a leap in the quality and lowering of cost of LEDs. So I think that demand just tanked and that’s why we have so many still around.
My daughter lives in Louisville and Louisville Gas and Electric gives her free CFLs. So she doesn’t have any motivation to buy bulbs. That right there is an artificial distortion of demand.
We bought a bunch of those spiral-y CFLs when we heard the ban was going to take place. But they didn’t last very long! and were much more expensive than old-fashioned bulbs; and we didn’t like the disposal issues.
That’s the reason we stocked-up on incandescents.