A single side of most double-edged blades last typically between 3-5 shaves. They can cut easily and quickly and provide a fast shave. The mach 3 I received as a gift, with its 3 blades.. each cartridge can last about a week and a half, but the last few shaves are slow and require a lot more repeated strokes to get an area shaved clean. Disposable can last about the same as double-edged blade (3-5). When I've stayed loyal to a single straight edge I've found it will last easily about a week and a half, or more, before starting to cut less close (given exactly the same techniques) and require more time and effort, flirting with pulling and tugging, especially around the lips. So a straight razor, for me, with diligent stropping, will easily match or outlast a double-edged blade, a Mach 3, or 2-33 disposables. The refreshing/touch-up lasts about one minute on the finest hone I have (the "finishing" hone) to bring it back to it's former glory.

If the razor I'm exploring has too much hone wear on the spine, that is, the spines width has been narrowed to the point where the included angle of the cutting edge of that razor is too acute to maintain structural integrity from repeated shaves I will notice tugging and pulling or "rough" feeling after the shave, then irritation (if I take it that far) and I'll notice some micro-chipping on the edge when inspected under a microscope. I haven't heard of any good razors that need to be re-honed after just a few shaves. Either the stropping, too acute a primary angle, or poor quality of the razor is to blame.