Even without AD, I would think that after you shave for a few months and are more experienced you may want to consider buying 1 or perhaps 2 more razors. It's just a practical matter.

If you have 2 razors honed shave-ready and use just one for a month, then start using the other on an every-other-day basis, then the first one will finally need to be honed about a month sooner than the second. Even if you have your own hones, you don't want to get halfway through a shave one morning and discover that your only razor is finally too dull to shave well with. And of course, if you chip or ding the edge, you may have to send it off for a repair and re-honing.

The third razor should be for travel (presuming you do that) and kept pretty sharp and unused except when you suddenly have to pack and go. It should be a plain, very economical razor, which will ease the pain somewhat if it's stolen from your checked luggage. (Realize that TSA will gladly confiscate it if you try to carry it on the plane.)