Ethernet Cables

+1 @lalitk .
I followed his advice and am loving the improvement in SQ.

For the money Supra CAT 8

If the builder wired your house or office with standard ethernet cable in the wall, will using Supra CAT 8 or ViaBlue 7 from the modem or router to your system make any difference?

Just asking...

Monoprice Entigrade cat 8

OK, let's think this through...  What kind of ethernet cable is carrying the signal to the router and possibly to the internal switch in the house?  It's generally marginal semi-junk that is just sufficient to carry the signal.  Cheap copper.  

So what's the point in purchasing $500 ethernet cable?  Just use off-the-shelf cable that is rated above the speed of the connection.