I think what the OP is referring to is people that are dumping their 980's after 6 months for 1/2 price and getting 980 ti's that they'll dump for 1/2 the price and buy the next new shiny thing effectively shelling out $300-400 a year to be at the top of the game rather than waiting for something worth while to upgrade to and hold on to it for a while. I'm running a pair of 680's that I got when they were pretty new and still pretty expensive but they've also lasted me 3 years and as long as everything goes a planned I wont need to upgrade until they're 4 years old averaging ~$200/yr. If I do something similar next year and buy $800-1000 worth of video cards and run them until I have a reason to upgrade it costs me about 1/2 what people that are dumping cards every year and right now I'd only be looking at a 30% increase in performance for $600 which just doesn't seem worth it, especially after as long as I've had these cards. Even if Pascal isn't as big of a deal as some people are making it out to be I'm sure there will be a decent lot of lightly used 980 ti's that will be 300-350 each making SLI $600-700 if it works out to be the better option, and you're looking at ~150% performance increase for the same price as a 30% increase today. If I'm wanting to push my budget even further add a couple hundred to put them on water and moderately OC them to get an extra 10-15% out of them without much work.
At the same time, without these people wanting to stay at the bleeding edge I wouldn't have a reliable second hand GPU market to save me hundreds of dollars. So ignore the OP, buy away :biggrin: