If you do a search, this has been covered about a billion times and the answer is ALWAYS the same. That "continuous" power rating is completely false and literally idiotic. Note that it says power handling not required. That translates into the MAXIMUM input power they can handle before they fry. They can't know what kind of room they'll go in or how you will use them, so there is no way to say how much power would be needed for a given situation, period. Klipsch is FOS in their response and they know it and this is the second time someone has asked this exact question.
While it is true they may use 100+ watts during PEAKS, they almost certainly are using 5-10W during normal listening. Unless it sounds muddy or unclear to you, then you do not need more power than what you have. If you DO hear that, then perhaps only a modest upgrade in your price range will be sufficient to make most people deaf. If you actually fed those speakers 150W continuous, your ears would be bleeding.
My workaround? Don't talk to Klipsch.