Modern Headlights

I've noticed new cars with turn signals that I could not see because of the headlights.

Yep, that's been a problem for a long time. The rule requiring front turns to be extra-bright if they're within 4" of the low beam is a good idea, but it's not good enough; often the turn signals are too _small_ to see clearly when they're close to the headlamp.

And there's a new problem, too: turn signals right next to LED headlamps or daytime running lights, which have a lot of blue in their light spectrum (even more than LEDs). The blue from the headlamp or DRL mixes with the red from the amber turn signal and the front turn signal looks pink. It's because the color output of the various lamps is checked one at a time, not together the way they operate on the car. There's a bunch of stuff like that...rear turn signals that are invisible if the driver's stepping on the brake, etc.

How long will it I have to wait for LED lights to replace my 6024s that don't cost 300 dollars a pair?

For legitimate ones? A long time. For Chinese headlite-shaped trinkets? You can get 'em right now.