Equipment pages, upgrades and pages related to them.

So I've noticed that some equipment pages tend to be rather inconsistent towards one another, mostly with price values listed on them. So I was wondering what would be the norm for it; Sometimes prices have a separator for the thousands, sometimes there's a small g for Gold, sometimes a capital G, and sometimes nothing at all. And on some pages you can even find examples of all three! Shouldn't there be a general rule for that kind of thing? (It's not exactly a matter of templates because these values are entered on the pages themselves)

Next there are pages like this one and that one, they seem relatively obsolete and don't actually get updated unless someone randomly stumbles upon them (like I did today), can't they just be removed or do they serve a purpose somewhere?