The biggest difference between the Tour and the Journey are the accessories. The Journey has furnaces and water heater. The Tour has Aquahot. If you fulltime in the colder climates. There is nothing better than Aquahot for floor and water heat. The Tour also may have a dishwasher. Journey might also, but probably not. The interior trims are different. Basically they are very close in every aspect
this is a typical conversation. It will always boil down to personal preference. The MH is always a bit more convienent. easier to drive in more harsh weather (note there is NO type of RV configuration that will be a real nice drive in snow, ice, or high winds). If you are going to be set up for long periods of time, the only "sensible" choice is a trailer. It is not good on any drivetrain to sit still for extended periods. However, if you drive all the time, you will be "wearing out" the MH drivetrain. Meaning it may be more expensive repairing/replacing certain mechanical parts on the MH, than it would be on a truck. It is certainly more costly to replace a MH than it would be to replace A truck, or A trailer. (Replacing truck and trailer at once might be about the same as replacing a MH though).
-----My only reasonable thought is this. Insurance. Yes. Insurance for truck and trailer is generally less than insurance for the MH alone. Not to mention insurance for the toad. OH yeah. Fuel mileage. Well that is about the same either way.
Camplites are nice. You could look into a hybrid also. Starcraft makes an "AR-ONE" series, that are 15' 17' & 19' any of them could be pulled by your RAV4. I sell loads of them to Jeep Wrangler V6 owners.