I bought two right after they came out, $349.50, case included, and mine were early enough they still had the brown fur Tolex/G+G-style case, not the later plastic ones.
HP spec'd them with serious hardware (WTH, the bridge probably weighed a pound or two alone), and they were ash bodied, I mean they were built to LAST. Interesting tone circuit, but I always ran mine wide open for a single coil tone, fairly hot pickups. In their day, they were tremendous value-for-money.
Ultimately, they felt sort of strange to me, this massive body with a very thin neck. They touted them as a 'bi-flex' neck or some other ad slogan I may not be remembering properly: Both of mine, the necks were flexible enough (repeated on my later Dyna Bass), it was too easy to hit an open note or harmonic, reach up and grab the headstock, and you had a whammy bar just that fast.
And ultimately, in a bilateral Fender/Gibson world, they just never quite panned out to find their place as replacements for the usual suspects, and joined a long line of 'other' basses in that attempt. That they bring the money they do today just slays me, but they are very solid instruments, no argument there.
I bought mine to find a 'lighter bass' to replace the Gibson RD I'd bought previously (almost 13 pounds), and the T's ran just over 10 !