not sure about the cost to buy one yet, 1step, but keep in mind that deep down is also renting these LARS, and that they pay for themselves in about 4 months of use..! rental fees must be incredibly high, and this suggests two things to me: first of all, the cost of the units is high enough to make renting a compelling option, and additionally, the margins on these units must be high enough to get such a quick ROI. all jmho.