That part of R/C is definitely dying. No one wants to build a kit anymore, me included.
I feel the same way. I'm a industrial mechanic and my brother in law (RC partner) is a doctor. He loves building RC car kits so I let him build my kits because I'm just not into that part of the hobby. Also, all of the cars that I like the most come ready to run.
I used to fly RC planes and gliders until I moved to LA. Not many legal places to fly in LA. Got back into RC cars and currently heavily modifying a Traxxas Unlimited Desert Racer to UDR 4400 racer.
I had to look up what that is, looks awesome brother!
I was racing in Wisconsin last weekend and the attached shop had a Xmaxx that someone traded in a week after they bought it and the deal was too good for me to pass up. I moved away from my hometown for about 15 years because to quote the Donald it's a bit of a S-Hole however while I was gone the town built a 800 acre Off Highway Vehicle Park / Campground and what appears to be a very respectable municipal RC Park where a golf course used to be as well as a indoor track at the mall that's been mostly torn down for redevelopment.