There is another "truism" that I heard early on. Why buy a used vintage razor for $10 that has a lot of problems when you can buy one that has few problems for $15?:)
It's fun to be able to handle unusual circumstances but unless a razor is rare and valuable there is little reason to have to deal with excessive edge pitting or blade warping or whatever when you can get a much better razor for a similar price since there are literally thousands of razors listed on Ebay at all times.
Sometimes you think you are buying a trouble free razor and when it arrives it has "issues" and then it can be fun to see what you can do but if someone is wondering how hard it is to hone a razor I don't think it's necessary to include how hard it is to hone razors that are in very bad condition.
It's much easier to just not buy razors like that.:)