Sales will naturally be down because places will have fewer employees and less customer traffic volume. However, if you are always looking to expand and are creative with location placements, you can still have very good sales. I have machines at coin laundrys, childrens medical clinics, restaurants, bars, marine corp offices. I compensate for lower sales per location with density of machines in a concentrated area so you can go for volume with little extra time and gas investment.
U-turn has good machines if you can get them used. They are 700 new, as low as 150-200 used. Sturdy, and they will help you with anything you need. I got a new keyset just by remembering what the numbers were when I lost my old keyset. Also had no problem opening an account and ordering other parts. They are also space efficient and can vend 4 to 8 different choices. Vendstar sucks and I only use them because I am renting some of my machines. However, a locksmith can help you if a lock part breaks on a Vendstar. The coin mechanisms are obviously irreplacable.