My grails have certainly changed through thru the passage of time and what was once desired would not find its way into my collection now.I now don't believe in grails as that would mean the end of the road and there are far too many pieces that I like to pinpoint the "one".As they say "happinese is the road".
I agree that if a piece is super hyped and people are willing to pay crazy money for it,the value becomes distorted and it becomes an investment rather than something you would enjoy wearing.Freeing yourself of the burden and reaping the rewards which will enable you to go on the hunt again is justifiable.
cheers
fernando