Will I buy it...yes. I have close to 4000 hours invested in GW1 and have enjoyed it immensely for most of that time.
Will I stay with it ? That depends on whether or not they follow their current trend of emphasizing grind based play over all. If GW2 places as high an emphasis on grind as GW1 has since the introduction of NF then I will move on.
If there is any advance indication that GW2 will emphasize grind to the degree that GW1 has come to, I willnot buy it and will do everything in my power to convince the members of the 6 guild alliance I lead to move on to a different game. We have been together for a long time now and many of us are frustrated with the game's decline.
A

- yeh, i love GW(stopped it tho, but still my n1 game).