Yes, for $1 a day, basically unlimited broadband mobile at even 1Mbps is an incredible deal.
We used to pay by connection minute for only ~14Kbps a decade ago. (You sure didn't want to take your time on the web back then!)
Don't forget, you paid the phone company by the minute of the call used to connect to the server, plus the cost of Internet service by the dial-up ISP, also by the minute.
On average I recall it was on average $3/minute to use a theoritical max of 14Kb/s and later 28Kb/s (hell, I still remember using baud modems).
Even though it might seem I didn't use these things because of my relative young age vs age of modems, let me clarify I come from a 3rd world country. Albeit Internet was slowly and painfully adopted. 2003 was first 128Kb/s cable lines at $60/month. Just in 2008 we hit 1Mb/s at same $60/month, that's painful.