Our old Hayward Super pump has a seized motor and I have been told by a pool pro that we need to purchase a new pump. He recommends getting either a Pentair SuperFlo High Performance single speed pump or a Pentair SuperFlo VST variable speed pump. We hope to only own this house for a 3-4 more years (or less) and rarely swim in this pool any more now that the kids are grown. Would it be worth $600 more for a multispeed pump if we only plan on living in the home for 3-4 more years? If a multi-speed pump needs a new motor in the future, will the new motor cost significantly more than a new motor on a single speed pump? We only run our pump 12 hours a day and only have the pool open 5 months a year. We'd only be interested in spending an extra $600 on the variable speed pump if we could likely save more than $600 in 3-4 years in electricity and a replacement motor or replacement parts wouldn't cost significantly more in the future.