All the OAS 7 range vary only in style, number of keyboards, and amount of physical controls on-board, the rest remains the same with all. (This is why discontinued OAS instruments can still have all the latest features)

The Abacus (Single manual version) has been discontinued some time; however I would guess cost about double that of a Tyros 4, (Being from the organ range it is made of wood & steel (Hand built) so is heavy, thus transportable rather than portable) as to the Louvre, then it is a showcase model, so if you need to ask the price you can’t afford it.

In the entire US & Canada there is only one supplier/dealer (Although you can order direct from Music Store) hence the low penetration, and as most members on SZ are from the US, most of them have never been able to see them, (Let alone play them) hence to low interest.

Bill