Yeah, depends on where you get it, what you get, and what dose you're on. If you want injectables, are on a typical dose, and are able to use Strohecker's (they won't ship to some states), you're looking at about $150-160 a year. That includes the T, needles, alcohol wipes (not the ones I like), and shipping. A couple of guys say they have found even lower prices at other online pharmacies, but I don't know what's included.
I found a pharmacy in my city that looks to be cheaper, but I didn't need any needles last time, so I don't know if they cost extra. It's a Priority Pharmacy and serves the HIV+/AIDS community, so they probably cut costs because so many PWAs use T.