Why do hotels sometimes charge for internet

Why do hotels sometimes charge for internet access and sometimes don’t? My take is that most hotels figure that it’s mostly business travelers that use the internet and therefore it’s the guests’ companies who are footing the bill and since it’s a business necessity for them, the companies pay, no matter what the daily rate. Which sucks for those of us who like a little internet on vacation or want to keep our small business expenditures down.

• business
• hotels
• travel