I need your help. A friend is into the "high tech" gadgets for the home. He asked if there was a hydro mower on the market for under under $2k. I became interested in the subject, now I'm curious. I know from reading the interesting posts here, I haven't seen one under $3.4K. Is this because you guys are only talking commercial? Is there a "cheaper" less "robust" version for the home? I know from looking at those things, the parts look expensive as heck.