Following on and complementing Dave's blog of yesterday, over here in the UK pop up hides are naturally more expensive.
But they have come down in price since I got my Ameristep Doghouse a few years ago, although I did buy mine in direct from the US, via eBay, which meant I got it for less than half the UK price, although it took about four weeks to get to me.
There are a number of wildlife photographic specialists hides made, but they are generally a lot more money.
There is generally more demand through shooting outlets and these links here and here will show you what I mean. I cannot vouch for the quality of these, but I can my Ameristep which has seen good service, been left out in all weathers for long periods of time, and also has bleach out a little too.
The nice thing about the Ameristep is its portability. Comes in its own carry rucksack, and goes up in a flash.