I had hoped many more would have been sold by now given 141,614 subscribers to /r/Bitcoin and 393,788 accounts in bitcointalk. Plus the hundreds of millions spent on ASIC preorders.
Sadly most of the people would rather invest in shady mining companies instead of increasing the security of their coins.
I wasn't your marginal consumer. I probably would have paid 5 times what you were asking if that has been the price. So it sort of confounds me that there isn't more interest than is.
Have you guys put much thought into increasing the value proposition by working with websites and services to help them to integrate your technology for authentication. How cool would it be if for each website that you logged in to, you could simply click login on the browser, plug in your trezor, get a prompt on your trezor, and then just hit confirm on the trezor. It would be infinitely more secure than the standard current credentialing method of typing in a user name and password and even easier.