An acceptable video rig, which is the PV-500 described above, will run about $400. Because most video shops are longer interactions, they may be "one and done"; that is, you cannot return to that new home model or that senior living community...ever. Or, perhaps only in 3-5 years and never to shop the same target. For this reason, count on doing some traveling to find more shops after the first 1-3 years of exhausting local opportunities. Video shoppers who do routes are often among the highest earning MSers.
Video will run from about $45 for a short apartment shop to over $200 for hard-to-fill locations. So, yes, you will find lots of work if you become proficient. Free pr low cost online training is available through IMSC. I think that only one video MSC currently lend/rent equipment for their shops. That is Ellis Property Management, if I recall. They also are one of the very few that requires a long report for their video shops. But you had better make sure that video is for you before spending $400.
BTW, most failed video shops go sideways due to lack of a believable backstory, not equipment failure. The equipment is easy. Just wear it around the house to practice getting the angles right. You will need to keep the target in the frame, from about mid-chest to the top of the head 75-85 % of the time. (Not including when you are walking or riding beside them, of course.)
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.