If Guild Wars 2 has a "rather short beta" then I will most definitely be waiting on it for at least a month.
Dont really feel like being burned by yet another buggy MMO launch that was pushed out the door too early.
You CLEARLY haven't followed this game. ANet IS NOT every other MMO developer. When other MMO devs Beta test their game, ANet has already done that for YEARS in their Alphas, they don't wait till Beta to invite tons of people to test the game nor wait months to get out a new build based on feedback. They invite tons of external (Friends & Family) testers during Alpha to get feedback while early in the design process to see what works and what doesn't. They'll push out 10+ builds a day with changes based on feedback directly to the testers so they can give feedback.
They showed the game in playable form 1.5 years ago now, the polish it had back then was astounding for only having been in development for about 2.75 years at that point. It's now even more polished and iterated on by a large margin, they do not run Betas like other devs and they do not release half-assed games. They've been at every convention since that point outside of E3 and have had it playable at EVERY SINGLE ONE. Awards are thrown at them for not only best MMO of the show, not only best RPG of the show, not only best PC game, but best GAME of the show. Name another MMO that has garnered that much attention prior to entering Beta and has non MMO sites saying that it's their most anticipated game of the year. You can keep thinking it's buggy or being rushed out the door, but don't be surprised when you find out that's not the case at all.
I can't stress this enough, this is not the same MMO you've been playing made by the same companies. ANet was founded by 3 of Blizzard's best ex-developers. Mike O' Brien (current CEO of ANet) wrote Battle.net, he created and wrote the MPQ format Blizzard still uses today, he wrote the rendering engine for Warcraft 3, he was a lead programmer on Diablo 1/Diablo 2/Starcraft.
Jeff Strain was the team lead and lead programmer of World of Warcraft, senior programmer on SC & WC3, programmer on Diablo, and created the SC world editor program.
Patrick Wyatt was Vice President of Research and Development. He was producer and lead programmer on Warcraft I, producer and senior programmer on Warcraft II, and senior programmer on Diablo and Starcraft. He also created revolutionary networking for Guild Wars that hasn't been replicated in gaming since.