When a file upload is needed on a website it is generally for a very niche use case (ie. job application) which won't need much storage or bandwidth. It's hard to justify an extra $240 a year for this, so people will likely go to third-party services such as uploadcare.com who offer 500 files/500mb for free with 5gb bandwidth. This is something I'd ideally like to avoid as I don't want my user's data/content spread all over the place.
Please consider allowing file uploads within a limit similar to that of uploadcare. Surely this will lead to more upgrades to Business Hosting in the future when people hit those limits – rather than paying the third party.