I know their prices have been climbing, much more than other manufacturers. Probably because they do not have as wide a distribution base as the older companies. While I do buy from overseas thru eBay, I am a very smart shopper and make sure that the price plus shipping is substantially less than the shelf price at the local shop.
My most recent Trumpeter purchase was their 1/35 scale M1078 LMTV (the latest style of US deuce and a half truck that came into use in the late 90s). I bought it at Hobby Lobby. The shelf price was $79.99, a rather insane price for a truck model, although I bet the marketing rights for making a copy of the truck probably worked into the price. Anyway, I used one of Hobby Lobby's 40% off coupon and it dropped the price considerably ($32 off).
Still, paying $48 for an 8 inch long truck is rather ridiculous. Nice kit though.