[NewReefer]

I started off long ago with Fiji then Tonga and from there Marshal Island and here later Catalina! After a while the mixture blends well, and coralline is rich with several colors ranging from Purple, deep maroon and some whitish green! The shapes and sizes of all add to the look of the tank, along with other creatures. I usually look over the rock well and remove whatever I don't particularly like. The average price is about 5.99 a lb for premium rock, although I've paid 9 for certain pieces. I've also ordered some from http://www.themarinecenter.com/
It was 50lbs of Marshal base, and I specified large and have to say it was awesome. I'm starting to notice lots of growth on the base rock finally after several months with hardly nothing on them, including the 50lbs of HIRocks that was totally dead Hawaiian rock.

 

[NewReefer]

OOPS I think I went off the handle and didn't even answer the questions lol, or maybe I did in a way as far as shape. Now price, I'd say raiarity, distance and quality upon arrival makes for a pricey rock, not to mention size and shape and above all the shipping to get it as quickly as possible without the rock sitting out of water too long.