I persisted, but had problems with the checkout process, it kept coming up as a blank page with no way of progressing, I am guessing its something to do with your hosting on GoDaddy and the site seal, but worth looking into.
The only way I could progress with an order for the rocker was to checkout via paypal, what this does is it reduces your website account data collection / customer database buildup, and therefore being able to market sales, etc through your website.
In essence it means I have purchased without creating an account - which is fine by me, but from a repeat business / customer marketing point of view its probably not ideal for you.
Attached are screen grabs - FYI, I am on Mac OSX, Safari with Ad Block Pro and Ghostery running, which means I block trackers, this may cause an impact on any google analytics you may want to run as well - tracking entry and exit pages, etc...
Incidentally, I always use a VPN, so thought initially it might be a geo-location block from the site backend, so disconnected and used a straight entry and had the same issue.
Look forward to the item, and there are a few more things I will be looking at getting at some point, but hope the above helps for now