Agree with that - the fees add up really quickly and then there are the buyers that decide to start griping about every tiny flaw they couldn't see in the pictures, threaten bad feedback and/or starting Ebay dispute resolution process, and basically extort you into a partial refund...but that's a rant for another day.
Anyway, as mentioned above, this isn't directly comparable with the Model 24, which is larger and more similar to the Model 27 or more recent Model 240 - basically all are Diana approximate equivalents to the Weihruach HW30. The model 25 (like the even smaller 23) is sized for younger shooters and has a less sophisticated trigger as mentioned above (unless you're lucky enough to get one of the "25D" variants). Still, cool little guns!