I like these, but I also agree with you. I definitely want to change out the USA stock, but I prefer the Australian stock version better.
I've noticed with these Spyder's, and the Phillips brand as well, that you loose much of the side light that's on the sides of the tails. They illuminate much more on the stocks than these or the Phillips do. This is the reason I haven't bought them yet. I do like the look more than the stocks.
2015 Chevy SS - PBM auto sun spare, Rotofab CAI, Kooks 1 3/4" Headers, X-pipe green cats, Red Tail Tips, 20% tint, Holden Conv. w/ SSV Badge, PBM Mirror Scalps, Homelink Conv., Vitesse Paddle Shifters, Elite Engineering Air/Oil Sep., Elite LS3 Catch Can, Granatelli Tunnel Brace, 20" MMR GroundForce GF09's, Bridgestone Potenza S-10's
#1133 of 3168 Overall
#191 of 523 PBM auto sun spare
Build Date: 12/07/2014
Buy Date: 5/15/2015
2013 Infiniti G37
2015 Mercedes GLK 350