I sure hope this aspect of the RC hobby isn't dying as I just ordered my first semi after years and years of wanting one! Sadly, it looks like I may be the only one with a semi in central Texas that I'm aware of. I haven't seen much activity for trucks/construction stuff. Racing, crawling, and drifting, however, are all doing pretty well!
If anyone is in the Austin/Houston/San Antonio/DFW areas, please hit me up!