I think the wired PT from CC is a great deal if you have a dedicated training bike (or just one bike for everything) but it is a hassle if you constantly move things around between different bikes. Plus, you know the OCD in all of us will require a matching front wheel, so add that to the cost On top of that is the weight factor (the rear PT wheel alone is listed as 1,240g).

So in short, I think iBike can be a great training tool with less hassle and more flexibility than a wired PT.