You are wrong,
i dont know any Developer from the lynx that needs a multicard, it dont helped more than a flashcard. I only need to hold one Game, than fast transfer the next build to test something. I transfer a testfile in about 15 seconds- in this time you are not able to change your SD. A flashcard is more like a original card and perfect for tests. Idont want change anyone of my flashcards against a multicard. Yes i own more than one, if you want test something with comlynx you need more than one card for one testfile, than many testfiles on one card.
Multicards are only for Gamers who dont cares about originals. Lynx Cartridges are not so big. If you have place in your bag for the Lynx and batteries you are also have space enough for this tiny little cartridges to get hours fun playing until the batteries are empty.
@108Stars
Production of a original like Plastik-Card is no Problem, but who want buy this when its more expensive, you can read in this posts that the people want have a cheap way handle lots of games on one Card ore Build cheap "it-can-be-everything" card.