This is how I see it. A new 2080TI FTW3 (EVGA) is $1349. For $719 I can get a 1080TI FTW3 (the 6696, I just got 2 at that price), so I can buy 2 of the 1080TI for almost the price of one 2080TI. And I have the disposable income, but I chose not to waste it. Thats how I continue to have disposable income, even in retirement.
Thats called being a smart enthusiast. Oh, and thats how I was able to afford the 2990WX.
since this is a video card GAMING thread, one could argue that unless you hold large lan parties, the only system you need to game is a single fast Intel/AMD cpu and ONE gtx1080ti since sli sucks. The rest of your equipment would be a WASTE of money.
In fact, I would wager that a gtx2080ti will beat 2 gtx1080ti's in sli in most games.
That's called being a smart enthusiast.
If you use your systems for other tasks , that's for you, but some might think that's also a waste of money.
WHat I'm saying is only YOU can determine what a waste of YOUR money is , other OPINIONS might differ.
For example. For ME a $2000 threadripper cpu is a TOTAL WASTE of money, but for others it might not be.