3-4 years? What are you on about, the ps6 aint coming out in 2029 lol. Its gonna be out by 2027 for sure. Also how do you not understand that PS6 has to be exponentially more powerful than this gen Pro to justify its existence. Which means new HW, more expensive components, if there is a bump in memory size, that will hike up the price too.
Do you think they will just fit in a current graphics card that will sell for cheaper 2 years later? Also everything is getting more expensive, not cheaper so not sure where you see anywhere price drops? Literally the opposite is happening.