I never said I was gonna go pro, or even look to it as a source of secondary income. If I were to play poker, it would be purely for the fun of it. I've been playing for a full year now, and so far it's been far cheaper than MtG (as in I actually made money in poker).
I would assume that you did not purchase Magic cards with the main intent of selling them later for profit, so I do not think selling all of your cards is going to be the decision you'll be happy with in the long run. Of course, if you're sure that you're never going to play again, and you have an easy means to move your collection, don't be afraid to do so. A good part of our game is that there always seems to be a market for your cards.
No I did not. I bought them with the intent of playing, but I haven't played a single Vintage match with them, and I can count on two hands the number of sessions I've used my cards. Thing is, I'm unsure as to whether or not I should sell now, or later once the format settles from the aftermath.