Currently have my fourth, fifth and sixth Chevy vehicles sitting in the driveway. While we own our TB and Tahoe I have leased my Traverses as they just start to fall apart earlier than the other two and I have no desire to be driving a 10Yo 150k mile Traverse.
I live in a small community, and in that small community there is one car dealership. They sell Chevy, so that is what we buy, why else like in a small community by choice unless you intend to support their businesses.
That said, I have been looking a bit wantingly at the new full size Bronco as well as the LC for when that lease comes up. I am sure if Chevy did relaunch a Blazer it would have so many compromises that it would miss the mark. But then again, if they made a limited run v-8 or diesel with 35+ tires and a removable top they could put pretty much any price they wanted on it and they would sell out.