i just got a Pitney Bowes postage meter this week. its a 90 day free trial, so i figured why not? its pretty convient so far. slide your envelopes right through, and prints postage on them. other then saving time goning to the post office to buy stamps, and never running out of stamps... and looking pretty proffesional to your customers, what are the benefeits of these machine. i know they have a letter sealer option, with a moisture sealer. that i would like! this is the one i have: has a built in scale, and a letter catcher. the envelope sealer option clicks on the left side of the machine.