It does look substantially cheaper than last time I looked, pretty competitive even on pricing now.
But it's about $5-10/GB if I'm looking right. I hope you really didn't pay 10x of that ever.
Discussion
The cost is relative to usage & location with #[6]. For an unlimited text/data/call plan with my standard US plan I was paying around $100/month. For the year with #[6] I paid about $130 total. Again, relative to my data usage. I only allow a few apps to use mobile data. The rest of my apps are WiFi only. It makes sense for me because I'm usually connected to a WiFi network. Obviously everyone's situation will be different.