Top Loading Portable DWs
Were actually a real blessing in many kitchens, yes you can't store junk on the top, but how much stuff to you really want on the top of a front opening machine when you are wheeling it around the kitchen that you have to worry about falling off as you move it ?
The great thing about a TL PDW is they take up LESS than 1/2 the floor space while it is being loaded and unloaded , you can easily leave the lid up and load as you cook all day. TLPDWs were usually only about 22"X24", not 24"X26", they were usually much lighter and easier to wheel around, some folks even roiled then into the dinning room and loaded them right at the table.
This is one of the reasons why you see so many hardly used PDWs like the KDS-56 in this thread as they were a real beast to move and use.
KA was about the last company to stop making TLPDWs, they quit in the mid 70s, KA also quit portable DWs altogether when WP bought them out.