All 100% speculation at this point on FI, but the RI appear to be holding thier own in resale. Actually significantly better than my 24 MXZ's did.
I suspect the FI23 is going to hold its value insanely well. Just due to performance and price point. I fully expect it to take some 23LSV share. IMHO that is why 23LSV has done so well, it performs well, at a perfect price. Its not the Axis/Supreme/MB price but far from X23/G23/Ri237.
Centurion has only one issue, getting people to demo them, there is no better boat right now. But people are scared to try them, because there are not that many of them. Once you get out there, and people see yours, others will follow.