Shipping and taxes tend to kill you buying from Alex's, and the only real question over those hubs is whether they have special ordered from one of the three or four good Taiwanese hub factories* or taken something from an unknown mainland shop.
*Formula, KT and DiaCompe all make cartridge bearing track hubs which are close enough to Novatec that you can safely choose between them based on colour, price and your aesthetic preference of minor differences in flange cut-outs.
Shipping and taxes for me are no worse than Europe and generally better than next door (US).
I think the Cycroc hubs have a much better fit and finish the any that you mention, and for me they're cheaper than all but the KTs.
Shipping and taxes tend to kill you buying from Alex's, and the only real question over those hubs is whether they have special ordered from one of the three or four good Taiwanese hub factories* or taken something from an unknown mainland shop.
*Formula, KT and DiaCompe all make cartridge bearing track hubs which are close enough to Novatec that you can safely choose between them based on colour, price and your aesthetic preference of minor differences in flange cut-outs.