Even if I had the money I would hold off. I saw it at BB and the sheer size is impressive. The picture is also very nice, but there is just to much change coming. At the very least I would wait for Sharp's "Moth Eye" glare free glass that is said to eliminate glare and increase contrast. Don't know if the have it in 90", but confirmed for 60", 70" and 80" next year, so I don't see why not. You also have possibility of IGZO, ICC-4K and maybe IPS. However, If you need a set right now and want one of the larger sizes, the 80" is hard to pass up at sub $4,000 street prices.
DON'T ARGUE WITH ME. I AM NEVER WONG.