I can only do the one-night hotel shops if I pay for someone to fill in for me elsewhere. I refuse to pay someone for more than one night. I do these occasionally because the task is a good practice in time management. But I hasten to assure that I am not just a one-night stand. I do the job. Even if my eyes do glaze over in the bar and I would rather be in my room. :/
But you were wondering about well-paid shops in rural areas such as mine. There are degrees of rural, and well-paid is subjective. Each shopper is situated uniquely. Each shopper can determine what is good and accessible for them and consider their age, energy, expenses and time. Some rural areas do not have shopped or other usable places. But in other rural areas, one might find at least one of the following locations: banks, credit unions, salons, grocery stores, convenience stores, gas stations, fast food restaurants, other restaurants, hardware stores, ag-related stores, pet stores, gift shops, general stores, lumber or home improvement stores, movie theaters, bowling alleys, bars, post offices, city halls, libraries, golf courses, colleges, universities, and other places that are shopped. Off the beaten track in some rural areas there lurk some fabulous [expensive/exclusive/desirable] resort-type shops. We know from other threads that some shops have a shopper-friendly ratio of pay:work and others do not. We remember that we have a longer drive to many places and can walk to some places. This may be a factor for us. We know that we can wait for bonuses or ask for them. We alone know whether we can travel to distant shops. Some shoppers would consider all things and determine that pay may be bad or good at the base fee, better with a bonus, and almost what we deserve as the month or quarter progresses. We can use shop apps, search functions in individual MSC websites, and job boards such as Volition, Job Slinger, or the "Mystery Shopping Job Board" in this forum. After we have done this for awhile, we might be contacted directly and asked to perform certain shops in our little towns or in distant places. In the US, we can find zip codes for targeted areas and use them when searching for distant shops. In other countries, we use similar information to locate jobs in rural areas there.
No one asked about this, but I will say it anyway. The emphasis above is on "we" because we cannot persuade other members to tell us which MSCs handle the shops for particular clients or shopped places. We rural dwellers can learn from the others here and find out shops and go from there.
Nature does not hurry, yet everything is accomplished. - Lao-Tzu