If you're after maximum bang for your dollar, a solid tube dob will cost considerably less than a truss dob and, currently, a truss dob will be over your budget.
Andrews and Bintel usually have the best prices, and there are a couple of other dealers up your way as well.
$1000 would have bought you a dob, some better quality eyepieces and a chesshire as well before the dollar crashed, right now a 12 inch dob will cost around that without any add-ons.
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