You said it doesn't matter if it lasts 2 years or 2 days, that that in no way affects your decision and you don't understand how that would affect anyone's decision. People have expressed a way in which they determine value based on longevity, you said it doesn't matter if it lasts 2 days. I'm pointing out that you DO factor longevity in to YOUR decision too, even if you are choosing to mock other people for their expression of that determination.
Remember the pretext to this thread is that the forum has been inundated with threads and posts by a vocal minority that it's completely pointless to spend more than £200 on a GPU because a console can do everything better than an overly expensive PC GPU. No one is saying "My GPU only cost me £5." They are just saying that in the long run, compare with other hobbies or expenditures, it's not actually that "expensive" or "poor value", as a few would try to have you believe.