The RC-27 is about 1/2 the weight with roughly the same dimensions. I don't know what the cost is but I'm sure once you've shipped and formula 28 from EU and rig it out it will set you back some change. If you want a family friendly boat that has decent speed, find a Stiletto 27. A fraction of the cost and a nice platform. A Std 27 would weigh in about 1100#s (as per spec sheet)and go up from there depending on how you load it up. I have a Special Edition which is the cruising model and I'm pretty pleased with the performance. It'll still do 15 kts easy (more with a better crew)and its still kid friendly. I've put 10 people on it and had a blast!!!
Its all in what you want out of a boat.

Clayton
S27, H16