if they are comparing Airtable with Spreadsheet, why there is a constraint on # of records unlike spreadsheet(although Excel sheets are limited to 1.048m or so records per sheet but that's plenty I think to work with)? They do have another constraint for free account allowing only 2GB storage but then that alone should be enough and they should just allow adding as many rows as one can until one gets maxed out with this 2 GB storage.