Sometimes I see these types of posts and I'm like "Troll or Ignorant" and I play that game in my mind for about 3 minutes. I just can't decide.
Anyway, weed has the same value as the bible, air, gold, diamonds, and spam - that is to say, whatever someone is willing to pay for it. No one can say what's worth what except you, but an eighth of good stuff around here is usually like $60 (3.5g = 1/8th, just in case) and a lot of people don't tare their scales, so I'd chalk the extra .3 up to bagweight. Now judge the quality of the weed versus the baseline rate for regular stuff per gram in your area and tell us....was it a good deal?