Thread: One Of These Things Is Not Like The Other

Or are they?
I recently snagged this sub $40.00 razor. Honestly, I didn't care whether I 'won' it or not. Now...well, I'm reasonably happy.
But the question I have is this:
All things being equal (as if that is possible), which do you think makes the biggest difference between razors, manufacturers, grind, century produced, size...or anything else? Or is the difference ephemeral or simply personal?
I thought of this when I had sanitized, honed and shaved with this razor yesterday. It was remarkably efficient. The pride of ownership factor is not particularly high but this is a capable razor and it made me think that there may be little difference between razors in a given category. This one would be German, 20th century, full hollow, 11/16's. How does this compare with my 19th century Greaves wedge? Well, I'd rather hold the Greaves and I cherish this razor but my face at the end of the shave was about the same...smooth.
Any thoughts along this line?