Amen. Like Ron Stahl said above, the F16 and F86 ARE the Mustangs and Cubs of the jet world. People buy them, so everybody makes them.
There definitely are some interesting kits out there from the smaller guys, though. Mick Reeves is a perfect example. If you poke around the web for a bit, you will find all sorts of stuff...two kits of the F4D Skyray, a Fiat G91, two Venoms, a R5C Vigilante, two F8 Crusaders, an IAI Lavi, an F106, a HAL H100, a BIG F84...but all from the smaller outfits.