My boss purchased our laser machine, not leased, it was around $150,000. If you work hard at building your clientel it will pay for itself. We charge $80 for underarms (which is relatively innexpensive in our area), and we do it in 15mins. We are VERY busy with laser, and compared to our esthetic services, it brings in 95% of our revenue - our esthetics services are just a great way to get clients in the door and to advertise our laser treatments.
We do not do microdermabrasion, we do peels, but both are easy to do and a great add-on to most facials. And you can find machines for under $20,000 if you look.