For the near future, I think most of their revenue is coming from OEM promotions, like NCTC, and other, similar programs. People paying cash are just incidental. For my very occasional use, it's worth it as I want a fast charge at a good location, and they usually have two per site so there's backup if one is down. I can amortize the cost, and I'm happy to help show there's demand, so they build even more. But I'd sure like to see more lower cost ChargePoint units.
'12 SL last reading @ 2 yr, 22k, 260 GIDs, 62.35 Ahr
'15 SV w/QC, Mfd 5/14, Leased 8/14, 292 GIDs, 64.38 Ahr when new
@ 25 months, 25k, 267 GID, 56.88 Ahr
@ 29 months, 29k, 286 GID, 60.88 Ahr
@ 31 months, 30.3k, 274 GID, 58.39 Ahr6.72 kW Array