@sparky tl:dr Shimano are more than adequate for your 'practical' bike.
I think have been told (BC iirc) that the advantage of getting the spendy Shimanos is that the bearings are accessible by independent mechanics, so good for a long life with servicing, and a bit better for the planet.
@sparky tl:dr Shimano are more than adequate for your 'practical' bike.
I think have been told (BC iirc) that the advantage of getting the spendy Shimanos is that the bearings are accessible by independent mechanics, so good for a long life with servicing, and a bit better for the planet.