If I am lucky enough to happen on nos at a reasonable price then I will buy, but will not if the price is not right and then I am left with used, which so far has been fine, I have never managed to find a totally stuffed part, which perhaps gives testimony to the quality of build from bitd, what's it like now, are parts as well built?
Recent nos includes purple Uno kalloy stem and M65/t cartridge brakes, both of which I was looking for and got for a very satisfactory price and cheaper than bitd.