While it it stated numerous times that eidolon is the closest thing infomorphs have to physical morphs, eidolons are still software, and are copied along with the ego when alpha-forked or back-uped, just like infomorph plugins and enhancements. So, essentially, you only need to buy an eidolon once and keep your backups safe, and never need to buy them again?
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“Any AI smart enough to pass a Turing test is smart enough to know to fail it.”
― Ian McDonald, River of Gods