Styx555,
Aquatub is absolutely correct. We looked at a Caldera C45 before buying our SunDance and was told by the Watkin's salesman that they came out with the C line to compete with other higher end tubs, yet at a price a couple thousand less than their Utopia line. They are very limited in color selection, and do not have some of the bells and whistles you will get from a Utopia, but for the price they looked like very nice tubs.
Good luck,
Jr