I'm at the Honda Dealer right now performing the 3k oil change maintenance (5k in my case). The service advisor told me that they will check all shocks free of charge.

Just in case my left rear is bad, Should I replace both rears?

I was searching around and talking with some friends and the general consensus is to replace only the faulty one or in pairs. But replacing all 4 doesn't make sense. I think in pairs is the way to go, any advise?