Thanks eric_squire
The two main reasons to use your own router are cost and security....
Right now the bargains in Wifi routers are Wifi 6 capable unit which are being discounted now that Wifi 7 is out. They'll serve you well for many years.
I own my Netgear Nighthawk and stay up to date. And my 1,000 sf. factory loft has minimal walls, 11' rough masonry ceilings. The modem/router is placed centrally. So mesh is not an issue. And it is Wifi 6 DOCSIS 3.1. It was a $500 unit in Jan. '22.
Any other ON TOPIC suggestions to augment my current setup or possibly step up a grade or two from the Nighthawk?