Personally I dont consider AAISP's 1TB limit an issue, When I was younger I used to be a warez addict, and even in those days I never hit 1TB usage, but did have the means to at least hit that usage in those days, now days even if you watch netflix for long hours, on its max resolution surely you wouldnt even come close to it. Some games are very big, e.g. when I downloaded GTA5 on my laptop for a second install it was 70gig, I had to map a network drive for it as the local storage in there is a 60 gig SSD. Downloading such games 15 times a month? do people do that, maybe. But peace of mind is a powerful thing so I can understand the want of unlimited usage.
If TTB was IPoE I probably would already be an AAISP customer. I just hate PPPoE, since switching to sky cpu usage on my router is like 1/4 of what it was on PPPoE, and I have peace of mind over not having MTU related issues.