We actually upgraded to triple pane last year, mostly because our house faces a really busy street. Honestly, the noise reduction alone made it worth every penny for us; it is incredibly quiet now. Our energy bills dropped a bit, but the real difference is the comfort. No more drafts when sitting by the window. We just finalized our summer
windows and doors installation booked June slot for the back of the house too. If you plan on staying in your home long-term, definitely go for it.