*looks at his $1.50/W pre-tax rebate ground mount 15.9kW system*
Oh, right, I spent 2 years working on that and 6 months of weekends building it...
Solar salespeople range from "tolerable" to "scum of the earth," near as I can tell. I've met better used car salesmen. The whole game seems to be to convince you that you're going to pay SUPER OBSCENE AMOUNTS OF MONEY for power over the next 30 years, so that if you pay them just obscene amounts of money, why, look how much you'll "save." And they never tell you what their actual calculations are, don't bother reflecting reality with it, and seem more interested in pricing based on how much they think you'll pay than anything actually sane. I did my own system after getting quotes in the $3.50-$4.00/W range before incentives. Sorry, $40k for a 9.8kW roof mount system just isn't interesting to me. And that's before they just assume that, of course everyone can take the full federal tax credit in the first year and work their financing scams around that sort of thing. Oh, you don't pay that much in federal taxes? Well... your loss, pay up for the creative financing you paid a few grand up front to "buy" a 0% rate on.
Hopefully you don't have any problems with it, Tesla solar's post-install customer service frequently is quite poor.