I recently purchased a Bestop Supertop NX for my JKU, so I have a "very low mileage" Trektop (non-NX) to sell.
The Trektop was on the vehicle for less than a year; I purchased it in May 2010, but we use a hardtop during the winter months. Also, the vehicle is garaged most of the time (it's a pleasure vehicle, not a daily driver), so the Trektop has had limited exposure for its age, and is in excellent condition.
I'm in central Texas (Austin area), but willing to ship anywhere in the US.
Price is $275 + shipping. I'll ship it in the box that the Supertop NX came in, so there's no charge for packing/boxing.
If interested, please PM me with any questions.