I've driven with the round headlight conversions for a couple months now, they're great. Not a stranger to such things, I used to run Hella and Cibie sealed beam conversions in my other sealed beam headlight cars. Still need to install the wiring harness and the high power Daniel Stern bulbs.
I looked into the 7" round LED conversions on the market. Almost all the options on the market are utter garbage, very important to get GOOD LED conversions. I specifically didn't want blue or even significantly white light, and needed headlight heating - just drove to work this morning in freezing fog. Quality 7" round LED headlights with heating are hundreds of bucks each, or the Toyota Koito lights with harness were $30 for the pair with shipping. They check all the other boxes and work perfectly, no reason to look at LED. Very happy.
There's no way Toyota is making any money on those Koito 7" round headlight kits. Wonder how long they'll last at that price.