Sanitaire is a Bissell company and Eureka makes Sanitaires, too. I used a Sanitaire professionally while looking for more lucrative employment. Don't know how much abuse it had seen but its shortcomings made my job a lot more difficult.I just purchased two Sanitaire Vacuums, one for upstairs and one for the down stairs. They are commercial duty janitorial models and I can tell you based on the amount of stuff collected it does a much better job of pulling stuff out of the carpet than a 100.00 unit. The first two weeks I had to replace the bags because of what the previous WM Hoover left behind. Long, heavy duty cords, easily serviceable belts, bags, beater bars, impellars etc... 212.99 each. IMO, its worth it because they will be the last vacuum I will ever have to buy.
BTW, this is a regular carpet vacuum
This thread reminds me that I need to discard my old broken vacuum and works better as a crop duster than a cleaning device. I'll vacuum my basement this week. It gets hit a few times a year. I have a BNIB Shark I'm eager to try out.