I would definitely be up for a 32 g/h unit if the price is around the $500 mark, but if difficulty keeps rising the hardware costs will have to come down.
We are going to see the hobby miners all dying off otherwise.
I'm in for one if delivery is going to be under 4 to 6 weeks from order. but not "Two Weeks
TM"

That is Why I said under 2 weeks
TM 
I want a product like this, but I have 4 or 5 preorders as I type. I have to wait for at least one to show up before I do another preorder.
1) BFL since march 2013=========== 14gh maybe 2 weeks about 514 usd
2) a bitfury since june 2013========= 10gh maybe 2 weeks about 3 btc
3) a knc sinc july 2013 =========== 40gh maybe 2 weeks about 7.5 btc
4)a jet with d zombie since aug 2013=== 10gh maybe 6 weeks about 1.55 btc
a grand total of 15btc so whats another 5 btc
this is 74 gh on hold . I am hashing 30gh as I type.