IA and WBM are great and essential, like a Library of Congress/Smithsonian. What's frustrating about some old websites like Microsoft or Borland's FTP download area is that dynamic links weren't followed and can't be followed and websites that used user-agent filtering. CDN links also weren't captured well.
There's so many retro patches that just don't exist publicly. For example, a number of files on SciTech's IA's WBM have zero captures. Most FTP sites weren't captured in WBM adequately either. There are spots of FTP archives hosted here and there on IA and elsewhere, but they're not like WBM for static content sites, and a single snapshot archive lacks the history and the changes, before and after. It is what it is, unless folks donate their vintage personal/work local mirrors to add to the collective.
There's so many retro patches that just don't exist publicly. For example, a number of files on SciTech's IA's WBM have zero captures. Most FTP sites weren't captured in WBM adequately either. There are spots of FTP archives hosted here and there on IA and elsewhere, but they're not like WBM for static content sites, and a single snapshot archive lacks the history and the changes, before and after. It is what it is, unless folks donate their vintage personal/work local mirrors to add to the collective.