It seems to me that...
If you are just cooking ordinary stuff, like steaming vege's or boiling potatos, then any old sturdy pot, with a sandwich base and even heat distribution will do. But it seems that if you are trying to make a sauce or something that takes some cooking skill...
If you need to get a specialized pot then you need to get a good one. A cheap or even a middle of the road say, saucier will give disappointing results.
Is this about right?