Price; I really can't see them costing more than the QPD offering. Should be less. We have to pay high import duties & a VAT rate (Sales/purchase tax), of 17.5% so, by the time we pay for stuff over here it usually equates to just replacing the $ sign with a £ one. Then adding a bit more for whichever thieves, sorry dealers, handle the order. I tend to get a fair number of "birthday presents!", from mainland Europe, which brings the cost of components back into the realm of reality.
Ratios; well I ride an SM with a 2.63:1 ratio. I do a lot of 2-up & loaded riding & most of the roads over here (with the exception of the motorways) are twisty so, good acceleration is a neccessity not a luxury. Most of us ride like mad-nutter-bastards over here in any case, so pissy-******-cruising is thankfully, quite alien to us. I've ridden the TBA &, was not remotely impressed with the performance; felt quite gutless in comparison with the SM. In fact, non of the TBA riders I've spoken to said other than they wished they'd bought the SM. The only real reason I would consider lowering the ratio, is because of the increase in power & torque released by dumping all that EPA nonsense which seems to sap about a 1/3 of the available performance &, because of the (rightly mentioned) difference between chains & belts.
I don't mind you opening that can, as it is important, not only to choose the correct ratio but, for us to share what knowledge & information that each of us possess. Tuning is an art not a science & what suits one rider's style, etc, does not suit another. That's why I requested tech specs from those members already running belts. The more gen we share, the better we can get our rides to perform, without having to ****** out the wife, to pay for it.