Sorry to burst any bubbles here, but it appears that a Chinese contractor has indeed figured out how to make more expensive tents, if the Campmor catalog is correct:
http://www.campmor.com/outdoor/gear/Product___24951
http://www.campmor.com/outdoor/gear/Product___27370
Both the Big Agnes Seedhouse at $289 and the MSR Hubba Hubba at $279 are listed as "imports" (go all the way to the bottom of the product description). Doesn't say from where, but I would refrain from chewing on the zipper pulls. Got to wonder about quality control, given the Chinese practice of using muiltiple subcontactors to do most of the work. Doesn't look like they dropped the price when they switched production overseas......