Checking one out in person is a smart move. Had a couple arrange to come see mine about a year ago. Color me somewhat shocked when they showed up in a Mercedes Revel. After a discussion and a tour, they decided to keep their larger and more comfortable set-up. Like you, I needed to travel (via plane) to San Jose from Idaho to purchase mine.
Moving from a RTT to a SMB will (or should) be a game changer. They offer so much more comfort and "livability" as compared to a tent without giving up the footprint of a decently maneuverable vehicle. The only possible downside I could see it you'll be transitioning to a full-time RV instead of the more versatile pickup based rig. If after looking at one in person you and/or your wife are still on the fence, I'd recommend renting a camper van for a short vacation and seeing how a Class-B works out for your situation.
Similarly as in your situation, ours is used for my wife, myself and our doggo. When it's just me and the pup we have lots of room. When my wife joins us we still fit well, just can't have two adults moving around at the same time easily.
Best of luck in your quest!
2001 Sportsmobile RB50 7.3
West Central Mountains, Idaho