With ADA you're essentially paying for a software solution especially for a 4080 which isn't much faster than a 3090ti in raster and probably the reason it was locked out on 3000 series cards despite having the hardware built in to run it.DLSS3 IS a true advancement and the 4080/4090, despite the high prices, do represent decent and excellent generational hardware upgrades respectively. Just the prices suck.
Having said that, it's likely that a 4080/4090 will last significantly beyond the 2 year generation cycle with DLSS taken into account as it is now being pushed into so many new games.