I've tinkered with Airtable a bit and it's a solid product. It's a "database" shown in the style of a spreadsheet. With a number of great features, but of course you got to pay for that.

The plan limit for free I get. However overall I think they use the records-per-base limit as their major "please don't use us for anything automated" function. You couldn't, say, build a light CRM on anything less than the enterprise version because 50k records (for pro aka $20/user/mo) just wouldn't cut it.

For those people who need database type powers for a very very small company - it's really impressive. Anyone larger...probably builds something themselves.