I bought a new Hydros 4 piece 8.5 ft. 5 weight mid-flex earlier this year. I have owned several Orvis rods through the years and I can honestly say this is the best yet! It is incredibly light and I love the action. My fishing outings tend to be marathon sessions, so a light weight rod that casts easily all day is a priority. The Hydros is very easy on the arm even after a full day of fishing. I paired my Hydros with a Ross Evolution LT reel which is one of the lightest in its class. I am extremely pleased how well this combination works for me.
As for whether they are worth the price, my vote is a resounding yes!!
As a side note, I also purchased the new Orvis Access rod in a 6 weight and have been very satisfied with it's performance. You may also want to look at this model if money is a consideration.