The advantage of buying pre-imported is basically speed and support… But while overseas delivery isn’t fast, I’ve tested Lightbicycle’s own customer support and found it very good. I got one of their very first mtb rims, and eventually cracked it with a big rock strike after about 3 years- sort of blow that could kill any rim mind, and it’d taken plenty of other big hits, despite weighing basically nowt. So I didn’t mind at all, it’d given great service. (the alu rim it replaced lasted less than 2 years, was heavier, and got used much less hard but still couldn’t cut it)
Out of warranty, and definitely not a warranty job regardless, but I sent them a sadface email and without any pressure they gave me a decent discount off another rim, it was almost 50% of what I’d paid for the rim in the first place. That’s pretty bloody good IMO.
Having said all this, alu rims have come on in leaps and bounds lately and LB prices have gone way up so it’s not as simple an argument any more. I still chose them for my 29er wheels but it wasn’t open and shut. I don’t think I’d pay more to get them from a more local supplier.