I would not start with a DSLR for which the lense are not usable on future new "Z" acmera's , and if one brand ( Nikon?) cannot sell me a new entry level, i would look for another brand, i guess (canon, Sony, or even Fuji), after that there is a good chance that i would stay with that brand, once having invested a bit more in lenses..
ANd maybe the "consumer - Hobbyist" market in teh U.S.A. is not that bifg in anymore, thet does not necesarily the truth for the remainder of the world..( other brands seem to do pretty well in the "affordable" market segment..)