Unless I am missing something I feel the ability to purchase the legacy content. Or just give it as a free item to people to use would be the way to go because I personally do not enjoy all of the revamps that exist in the Monsters of the Multiverse book. So do not take the content away as something for me to use ever in D&D beyond. I enjoy this service but taking it away is a massive disservice to someone who prefers the older monsters and was planning on purchasing them when able.

See this thread: https://www.dndbeyond.com/forums/d-d-beyond-general/d-d-beyond-feedback/141914-please-allow-purchase-of-legacy-books

Or this thread: https://www.dndbeyond.com/forums/d-d-beyond-general/d-d-beyond-feedback/141369-why-are-vgtm-mtof-unavailable-for-purchase

Or this thread: https://www.dndbeyond.com/forums/d-d-beyond-general/d-d-beyond-feedback/140515-anyone-else-wish-volos-and-tome-of-foes-werent

Or this thread: https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/143050-why-did-tome-of-foes-and-guide-to-monsters-get

And this one: https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/141795-heres-why-some-people-dont-like-mordenkainen

And finally: https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/140979-mordenkainen-presents-monsters-of-the-multiverse-a