I am also a 75mm + cable tele skier or a NNN-BC skier, for downhill and exploratory nordic backcountry usage respectively.
The main financial reason I haven't tried Xplore is because of the cost - whenever I'm outfitting a new pair of skis it's because I'm already spending money in an arguably frivolous way (on skis), and is hard to justify a $250 binding, as well as getting new boots, while orphaning your other skis if you love the boot.
From what I hear others say about Xplore, I think if my use case was the type of skiing I dream about, such as long approaches to mellow downhills in the backcountry, I would buy into Xplore. Unfortunately I don't live in such location. I am either skiing mainly in a flat(ish) forrest or skiing down a mountain doing tele turns. So a damn good enough nordic striding binding (NNN BC) and damn good enough downhill tele binding (75mm Voile hardwires) work great for their respective uses.
Curious to hear from Xplore users, do you get stopped by ski patrol / lift attendants at resorts for skiing with a non-braked binding?