Lease to buy

I only have spent about half an hour researching this stock ,  so please forgive my ignorance , my only sales experience is trucks and SUVs .
So my question is:  Why is LBT attempting to make sales via an all out sale rather than via a lease to buy option for its intended customers , as the buyer resistance to getting the product from the sales team to plugging it in would be considerably reduced with $ 6k paid 3 months after installation  and $5K monthly payments for 4 years rather than a lump sum payment of  say $200k and then service charges ?

THe other advantage is initial sales can mean the initial machines are in fact guinea pigs for free research by the company to make improvements on before sales ramp up

http://www.mdmag.com/physicians-mon...ts-of-buying-versus-leasing-medical-equipment