The Others (main box): $80
Each of the 5 expansion: $20 ea. = $100
Dice Pack: ?
The drop (I did your research for you) is $150 + $10 shipping. so yeah I would say it's worth it as it is cheaper than retail by $20 plus the cost of the dice pack.
Depending upon which expansions you get, you may not need the dice pack. I bought it and realized after the fact that I was getting an extra 3 sin dice with every pack, and the Beta team has dice too (good guys).