Honestly, it depends on the person's situation. I know one coworker who leased/rented and has done well with it. If you don't have the capital it does make financial sense depending on the deal. The issue is when u rent or lease, u don't get the federal tax credit. The company does. But I have heard horror stories when the person dies and the lease gets transfered or during selling the house.

Also, I know some leases will also include repairs past the warranty and solar panel upgrades.