The OP-1 is the only device I truly love and want to own but never will. I'm still pissed TE sent out an email after an OP-1 sold for something like $10,000+ on eBay saying "don't worry, we're working on making this affordable, stay tuned" then they announced a price hike! For a 10 year old product that's constantly back ordered!
Or not, since if something fails you have to ship it to TE and pay them IIRC $125 to look at it. I bought and own an OP-1, that still works great, however, the sequence you execute on boot up to get numbered list of options, such as update firmware, or factory reset cannot be reached. So now I am stuck with the last time I upgraded the firmware, and I can't get it back to the original state, so I can mess around with it again. I don't know, but to spend $800 on a synth, and have to ship it to Sweden, and pay that large a fee to simply look at it is a bit much. I then tried to simply buy a new board, so I could pop it in and be done, but they were sold out! I am sticking with Orca [1] and Extempore [2] for now.
Have you checked out similiar devices? The Critter and Guittari Organelle is a fantastic looking device and half the price, but lacking in some features of the op1.
Theres also the sonicware elz1 but it looks to be focused on being a synth.