Yeah, I agree. I have a Sugino RD crankset. It is the crappy 130PCD road bike model that came with my bike. It maybe a lot cheaper than the nicer ones, I highly doubt I would notice the upgrade (except when I look down at it). There is a very slight tightening and loosening og my chain. But that is it.
I would love a Brooks saddle, but they weigh a ton, unless you get the titanium models.
Still I think a modern saddle will be better.