My take is that you really need to know what type of camping and travel you enjoy doing. That is going to hugely matter whether the Class B camper van is for you. An open question like this suggests more time and investment maybe needed to explore that. Perhaps by renting and trying? Before any huge financial commitment only to find out after, because as we know, these things are not cheap.
There's so many forms of camping from tent, to car/overland, to Class B (A, C, travel trailer), and everything in between. The optimal one will depend on trip/destination/personal tastes. A point to consider independent of type of camping is that it can be handy to have separation between camper and transportation, to be able break away from base camp to explore. Otherwise tearing down the camp setup, just to visit something or grab a meal nearby becomes a constraint. Could be as simple as a bicycle to a Class B.
Class B's will be great, generally for a singular form of travel and use. For the right owner, it's awesome.
Personally, I'd stay with the cruiser. Here's why.
It's the ultimate flexible tool in my mind. For any type of camping and exploring. Not much needs to be said for its pinnacle ability as a long distance travel tool, or mild to extreme off-road exploration. It's also hugely flexible from basic camping, overlanding, off-road trailer, or full blown RV trailer. Which is why I try not to permanently install any camping items to it. Depending on specific trips, I can tailor the configuration and load out . Or keep it empty for commuter, bus kids, or Home Depot duty. Because of that, the cruiser IMO reigns as the ultimate swiss tool and easier to justify.
Light adventure travel
Laden overland travel
Full up RV camping. While still having a capable car to explore, or spend a night or two away from base camp deep in the backcountry.
Having built an off-road trailer for a buddy earlier this year and watching how well that's working out for him, I'm building plans for another.