There is a difference between sharpening a knife and honing a razor. Essentially with both you are removing steel to create an apex, however, you are correct that a razor requires a more refined edge.Straight razors. I had one for a few months back in 2008 or so, a Thiers-Issard I believe. Sold it for reasons I can't really recall Do you find the upkeep easy? I can sharpen a pocket knife but a straight requires an even more refined edge.
Stropping is a skill that must be learned as it does help with maintaining the edge.
Learning to hone is a definite advantage when using straights. You don't have to spend a small (or large) fortune on various rocks if you don't want to. There are a few threads on the forum about using lapping film which can give a decent edge. I still use lapping film to hone my razors and have no complaints. The set up for this method can be inexpensive.
Once you have become adept at stropping and honing, the upkeep of straight razors is easy. Although if you are so inclined, there are numerous rabbit holes to explore from restoring, rescaling, reprofiling etc.