I have to say that I completely disagree with this rationale. I wear glasses...without them I can't see much, certainly not enough to do without them. I could spend a pittance on a cheap pair, or, invest a little more into something that will protect my eyes from harmful things, enable me to see and perhaps make me look a little better. I'd be wearing them every day and they'd be having an impact on everything I do....therefore in my book they're worth something to me, especially as they may last 2 to 4 years.
Same goes for graphics cards...the initial outlay might be a fair amount but If I'm using it regularly, it enables me to do things I'd not be able to do so well without, and importantly doesn't make me feel like I've misjudged what I want then it's worth it. What else is a better use for your hard earned money than the things you enjoy outside of work. For me resale value is moot. Much like cars I use my PC until it meets it's maker.
Buyers remorse is where you end up buying something you don't think you need...perhaps in this instance it might be a Titan GPU in a 1080 machine that is only used for Minecraft or visual novels. Certainly I think few educated consumers (ergo not those on these boards) run into buyers remorse very often.