To address some recent comments:
First, we are confirmed for the tours I listed.
Our ambition may be informed by weathering the pandemic and three recent deaths in my family. We aren't getting any younger. If we want to enjoy our money while we are still physically able to, we need to pick up the pace.
Second, Cathy and I won't get homesick. We are used to communicating by email, social media, phone, and now Zoom, with family and friends. We have been traveling around N. America in an RV year round since 2014. Our overseas tours are a vacation from our routine traveling.
We pull our 40 ft 5th wheel with a semi truck tractor with full size sleeper fridge, microwave and dinette booth that converts to one of two twin size beds. We also put our smart car up on the back of the truck between the sleeper and the 5th wheel trailer. We often stay in an a campground for a month and explore the area in the smart car without moving the truck. We don't feel rushed, or need to see sights like our National Parks during peak hours or inclimate weather. We put a lot more miles on the smart car than our truck.
While we were in Europe last time on a RS tour, a retired electrician friend who volunteered to keep an eye on our RV contacted me to say an Arizona dust storm had covered our solar panels and we lost power. He cleaned them off for us and thought everything was fine because the lights (12 volt) were back on. Unfortunately, he didn't restart the inverter for the 120 volts the fridge needed. We had to buy a new fridge and lost the food. Luckily our freezer which was filled with Alaskan Halibut I caught was on 12volt and we didn't loose. Next time we plan to empty the fridge and freezer before we go.
Another issue we have is that many campgrounds want us ready to evacuate our RV in a weather emergency. It would be harder to find someone to do that for us due to the size and uniqueness of our RV.
Repositioning the RV to Ohio in late winter, where we have family and property, for tours we prefer to take in March has complications too, such as getting caught in a snow storm and "winterizing" the RV so plumbing doesn't freeze and break.
There are more such complications I won't go that make multiple trips overseas harder for us.
In my mind, the issue comes down to which is better: 1) Reduce our logistical RV issues by taking one trip with more tours. Or 2) Enjoying the individual tours more, by doing fewer in each overseas trip, such as two tours on a spring trip and two on a fall trip.
Everyones thoughts ar appreciated, but hearing thoughts from others who took multiple tours in the same trip really helps.
Thank you all.