How much does it cost to buy Wi-Fi?

Excuse me, but I'm curious about something. Could you please clarify for me, how much does it typically cost to purchase Wi-Fi access? I'm asking because I've noticed prices vary depending on location and provider, so I'm trying to get a general idea of what to expect. Is there a standard price range for Wi-Fi services, or does it depend heavily on factors like speed, data cap, and contract length? Any insight you could provide would be greatly appreciated.