Seems like a good deal in comparison to the cost of Metamucil. If you're looking for absolute best value for money with psyllium you're probably still better off buying the raw bulk stuff.
Just some personal thoughts on fibre. Overwhelming majority of people do not get enough fibre in their diet (recommended is 30g of fibre). I've had family and friends effected by a colon/bowel cancer, young and old (as young as late 20s).
While raw stuff is good, its also very difficult to drink compared to metamucil and its peers.