Rock Lords toys

I haven't seen this movie but did anybody ever collect the Rock Lords toys? I had Granite, Boulder, and Tombstone, I thought they were pretty great at the time (well you would it you were a kid) but looking back I think they were pretty lame. All they did was transform into different types of rock, at least with the Transformers they could transform into all sorts of shapes, cars, planes, trucks, guns, defence bases etc and the toyline continues 25 years later, but the RL phenomonen (or lack thereof) is more or less forgotten and it isn't really difficult to see why.