I'm about to pull out of going to Austin this year, for a few reasons.
As has been stated before, the ticket situation is ridiculous. I have attended 13 Grands Prix and have sat at either the pit straight or turn 1 for each of them. Us normal fans don't even get a realistic option for that (no way am I paying for a PSL for just one race a year!). What happens if the PSLs don't sell well - will the pit straight/turn 1 tickets then go on sale as individual tickets?
After previous experiences, I'm not too keen on going to a race's inaugural event . I went to Singapore 2008 and the organisation was a bit of a shambles. However, I was keen to give the race another chance - since then, the organisation and spectator experience has been superb and I have been back every year since. I also went to the first Indian GP last year and the whole weekend was a disgrace (I have written a post about this in the 'Grand Prix Travelling' thread). Like others, I share concerns about whether Austin will be ready in time. India may have got the racetrack ready, but they completely neglected the needs of spectators whilst building the track. There was literally nothing to do at the circuit in between the F1 sessions. Hopefully COTA won't be as incompetent as those clowns from Jaypee Sports (they will never get another penny out of me again!)
Also, this may be a bit off-topic but having just returned from an incredible week in Montreal, I'd rather spend my time/money there, where I'm guaranteed a superb spectator experience in an amazing city. The place had me hooked - I'm probably going back there every year for the foreseeable future. I live in NZ so it takes a fair bit of time/money to get to North America. With work being so busy for me, I'm not sure I can commit to two trips to North America each year (plus my trips to other F1 races).
For what it's worth, the general consensus in Montreal amongst the North American fans I talked to about Austin was very pessimistic indeed - very few people had committed to going. I hope Austin gets their act together and delivers a superb event. However, I don't see that happening this year. I would love to go to Austin in a year or two when they have sorted everything out.
Finally I must say that the North American fans were very passionate, knowledgeable and sporting. I loved meeting them and drinking with them - it definitely made the Montreal weekend even more enjoyable