Where I've checked - Powder Valley, Midway - the 120 gr TTSX is about a buck or so less per 50 than the 140 gr E-tip. Agree with mark above - the 120 TTSX and the 7-08 is a really flat shooting, really hard hitting combo.
I got the E-Tips as factory 2nds, $14.95/50.
I bought 15 bags.
P