I saw this while surfing the web the other day. Whil I dont know that these would be a direct competitor of the TM, it ticks a lot of similar boxes in that it is light weight and towable, seems pretty well equipped, etc. It also checks the "they are very very proud of it" box too.
Alto expandable teardrop.
http://www.safaricondo.com/en/caravanes
They look pretty nice, but a new one is about 36grand. For that, a TM seems like a better value.