The dealers want you on the lot. That's the issue honestly.
Truthfully though if you are being frugal, leasing is a bad idea.
Totally agree with you in general, and leasing is not something I would ordinarily ever consider. We buy our cars and drive them into the ground. We're replacing a 2002 Prius.
But the word in the press is that leases on EV's right now are very affordable, a better deal than buying for idiosyncratic reasons, like (a) manufacturer incentive to just move units (to be able to divide R&D and start-up costs by a greater number of units, making the cost per vehicle look better); (b) a bigger than usual need to move year-end inventory right now; and (c) the $7500 federal tax credit distorting the usual economics--it increases the immediate depreciation hit you take by owning, and the manufacturers/dealers are willing to price the leasing as though you're getting the tax credit, so you get the economic benefit without having to purchase and take the depreciation hit.
I'm interested in comparing actual offers and finding out if any of this really measurse up. The manufacturers all say on their sites, "click here--get a quote." But no one talks to you unless you walk onto a lot. And I'm not there yet. If they won't cough up some info, I'm staying at home and fixing the old one.