Well, sort of. I would argue that both DM and JD, while pretty good games, have things that hold them back from being truly great. it's the same with all the cheaper games. The pricing of pinball is amazingly logical to me, something that you don't necessarily see in other hobbies. A game that is good and has universal appeal is worth the most. A game that is missing one of those is worth less. A game missing both of those is worth even less.
All of the Stern games sub $2500 that were named are sub $2500 for good reasons. If you like them though, more power to you Like I said, I like a lot of them too. And, while I really like (and own) DM and JD, there is a reason they are only worth what they are.