The most interesting/successful "travel" photographers I've ever met surprised heck out of me. They even dragged out their accounting books and tax returns from a couple of years to prove their point.
They were elderly and more or less lived in their small motor home (We were in a national park at the time.). They used nothing but basic point and shoot cameras and had prints made at a local Walmart wherever they were at the time. But here's the point: They made a darned good living at it.
Their routine was to plot a "route" of shows, festivals and even flea markets wherever they wanted to visit. Arrive a few days early, take shots of local landmarks, and have multiples printed. Then sit down at their campground picnic table or the dinette in their RV and glue the photos to blank note cards, put 4 with matching envelopes in suitable display bags and sell them in a booth at the event. Price was $10-$15 a pack, depending on local markets. Their marketing experience told them to keep the price below $20 to encourage impulse buys. Their photos were several degrees short of "great," but better than the average snapshooter would take in the same locations.
Low overhead, easy labor and quick sales added up to a surprising sales volume. Having the time of their lives traveling and netting more money than they ever managed in pre-retirement.
Not my cup of tea, but creative people with sensible business plans and a knowledge of "fringe" markets can surprise you.