Where can you buy rechargeable card laundry machines?

[Nick L.]

I want to put a vending laundry into a 6 unit multi. I don't want to collect coins every month and I'm also concerned about a coin machine atracting thieves. 

The only vending card systems I've seen are suitable for laundromats or apartments with dozens of laundry units. 

Does anyone know where I can buy either (a) a washer and dryer that comes with this system, or (b) an aftermarket add on?