I lived and camped in Europe during the '70's and was amazed at the "convertible" camping gear available all over Europe. Tents that had no end -- you could buy extra rooms of various sizes and heights to expand your existing basic tent. Furniture that openned into ever larger configurations. Tables that expanded to include more shevles, drawers, etc. All similar to the "Swiss box" idea. That was 30 years ago and I've never seen camping items like that in the US. I own a 2012 Roo that expands with fold out beds and a slide, but the accessories available here have never matched what you could find in Europe. No offense to US companies using Chinese factories, but the Europeans' lack of land area per country forced them to think "compact" and that created items like the "Swiss box".