The people you speak of aren't purists. At all.
Many terminator owners had a MSDS (my shit dont stink) syndrome in 2002-2006 until the GT500 came out. Then the 03/04 cost over perforamnce vs. the GT500 performance over what you paid MSRP + markup was played. Most of these MSDS folks no longer have 03/04's cause they are *gasp* 3+ years old now, and there are higher hp cars with warranties available...
IMO the 65-70 mustangs are the only ones that matter when it comes to what type is/was best. The 2004 built on a 79 fairmont chassis or a S197 identity crisis is all peanuts; 65-70 are the golden (read: best) years.
At least you can have the last word Tony...the 05 up is the current evolution of rice. Flame suit on