I recommend you research the "sunk cost fallacy". There is absolutely zero cost for any of us to leave Guild Wars 2. Especially in a game which doesn't have a subscription fee and allows players to return on a whim, at any time, for zero cost, and pick up exactly where they left off. Once you reach Level 80 and obtain a set of exotic gear, you're good to go forever more. You may not be "absolute best in slot" for every future encounter, but you'll at least be "competitive". As far as items that you've previously purchased (bank slots, character slots, bag slots, permanent crafting tools, costumes, etc.): you have enjoyed the use of those items since the moment that you purchased them. And if you return to the game, they will still be waiting there for you. I've "left" the game several times, and returned just as many... and each time, I've enjoyed the numerous upgrades that I previously purchased. There is absolutely zero "cost" to leaving the game: you just uninstall and walk away. And there is absolutely zero "cost" to returning to the game: you reinstall and pick up where you left off.