The Jade is probably the best low-cost hardware signer on the market. It's easy to use, feature-rich, and backed by a highly reputable company in the Bitcoin space. The new Jade Plus also looks really nice, but it largely provides the same functionality as the original Jade. The bigger color screen and updated case are the biggest differences. Therfore, I think its price at 2x that of the Jade is a bit high. I think something in the range of $120-$130 would be more appropriate.