I think you are looking at it incorrectly. No business is buying individual accounts, because if they do, they open themselves up to considerable risk.

The $200 plans are priced so that the power-users use them and then advocate about how great the product is. If you're buying a $200 plan, you're not doing it because of the price point but rather because of the amount of work it is doing for you.

Lots of businesses are buying and using these plans. Basically every small business I interact with.