I've been constantly debating whether I should do a RTW trip on a bike or just buy a truck with a camper shell.

Obviously the bike is a completely different, in your face experience compared to the truck, but...

In terms of money and convenience:

The motorcycle would get FAR better gas mileage and be cheaper to run than the truck, but the truck can always be used to sleep and work in, anywhere, anytime, in any weather condition.

A truck would save you money on lodging and staying in hostels.

Even though hostels can be very cheap depending on the country, you must first go to them (you can just park anywhere in a truck and sleep), they are subject to availability (the truck is always available), and they can get up to $30 a night in some countries (that's like 6 gallons of gas for the truck, per day!). If you're tired on the road from driving, you can just pull over and sleep in the truck. Can't really do that on a motorcycle. And if it's pouring rain or snow, you can still just go into the shell and stay instead of finding lodging or pitching a tent in a downpour.

I'm currently living out of my car in Lake Tahoe and it's free. If I were on a bike, I'd have to find a campground, pay the campground fee, or stay at a hostel or motel between $30-$60 a night.

A motorcycle saves you money because of fuel if you're constantly traveling and moving about, but if you like to stay put in a spot like I do, a truck would be cheaper in the long run.

So I'm basically looking for some input. I still LOVE the idea of riding the world on a motorcycle, but I feel like it could get very inconvenient and expensive at times.