I like to try a new component once in a while when the upgrade bug hits.I am sort of beyond trying new flavors of components just to satisfy an upgrade bug. As you are finding out, as I did years ago, the actual improvement with electronics and peripheral items like cables is only very slight. If at all. Its the transducers in a system like cartridges and speakers that will have the biggest sonic impact and I am pretty much where I want to be with these.
Much better to analyze where the weak links are in a system and address these. I am having a harder and harder time finding them in mine so I guess I am done for awhile.