You received the Charter Subscription rate. It is now about $100.00 per year.
I used to spend that much on Criterion Collection LDs in my youth. Totally worth it given the massive content and original contemporary films being produced specifically fir the channel.
I’m really impressed with the Channel. My gripe with other attempts was a limited access to the Collection. I’ve used it streaming on the PC and via app on iPad. I give the nod to the app for overall performance. Would like to try it on a good 4k TV.