and i was lucky if I could get a cartridge with 3+ blades to last the entire shave.
But the use of stainless steel has eliminated a lot of the ability people had in the last century to sharpen blades and prolong blade life. Look at all the blade sharpener systems from the carbon era, they did a good job back then.
But it was still the same debate, do I take the hit and get a new blade, or do I get the sharpening system, and try to get another shave out of each blade..