Go with the RW's as stated before. You won't regret it. MP's dry side pump's have also failed in the past and its replacement costs more than a RW. The trade off is you can buy probably 2-3 RW's for every 1 MP. You will gain virtually the same flow if not better, and a quieter operation, pump motors outside the aquarium are loud. You don't need to sacrifice your child's college tuition to buy a set of powerhead. American companies are selling RW's now so support and warranties are available too.
This is the industries direction. As more and more new companies enter the nitch market, the grandfathered companies are going to feel the squeeze as they can no longer charge whatever they choose.