I'm about to purchase either the OMD EM5 or the EP5 and am strongly leaning toward the EP5. I am ok with the external viewfinder and like the WIFI features (I will be sharing the camera with my wife who would love being able to share pictures). However, the only thing I am concerned about is the lack of weather sealing. I do not intend to be out in pouring rain taking photos, but I will be going to Hawaii (a main reason for the purchase) and hope to take the camera on hikes, on the beach, etc. Should I be concerned about the lack of weather sealing in the EP5? Any advise is appreciated. Thanks.