Board Thread:Support Requests - Getting Started/@comment-25476085-20140928184039/@comment-2170536-20140929030138

Agreed, but even large pages are usually less than 50kB in text. Wikitext is actually really efficient. Even if every page and every revision were 50kB that's still 200 pages/revision per MB and 200,000 pages/revisions per GB. And most pages are much smaller with only a few revisions. Furthermore, if Wikia only stores the page changes for the page history (which would be more efficient, although slightly slower to retrieve), that would mean substantially more pages/revisions per GB.