personally, i don't think they sold enough to keep making them.
even Outback, #1 in sales for rear bed slide TT's and had the most floorplans, has drastically cut down the number of rear bed slide models in their lineup.
that should tell you that, if the #1 manufacturer of this type of TT is dropping a number of the floorplans, then they aren't selling enough.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package