We love our AB 9 1/2 ft. aluminum RIB at 95 lbs. It's light and rugged. The only thing we did wrong with the aluminum RIB was not wax the RIB part as recommended by AB -- our aluminum is peeling white paint, but it still works perfectly. It's now 5 year later and it's been from Roatan/Bay Islands to Cartagena back through the San Blas and Panama, then up through San Andreas, Providencia, Vivorillos and back to the Bay Islands, Belize, Isla Mujeres and now SW Florida. We're still happy altho' it wasn't the least expensive, it's held up well so far. It's still available, check out AB's website, aluminum RIB's called Leisure Lamminas on their model page on the AB Inflatable website at http://www.abinflatables.com/i_producto.asp.
Cheers! Jan