I have a set of handbuilts that are 1400g. They have been used for approx 1800 miles only.
Ambrosio Crono F20 rims, DT Swiss 240s hubs (Shimano 10sp), DT Swiss Aerolite spokes 28 front and 32 rear, shod with Continental Competition vectran tubulars (rear tub has some wear but still good to go). They spin up very well, climb beautifully and accelerate like rockets.
With labour charges for building the cost of these wheels alone would be around £515, cost of a pair of new tubs would be around £80. I am selling for £380.
Can supply pics on request