Yea when the pack first came out I reallly wanted the silver-blue hawkeye crystal. Somone on fleet had it and was offering to sell it to me for 860k... I really almost did it, but thought to myself "give it a few days for the prices to settle" and wallah pages and pages full of white-black and silver-blue crystals.
I personally like having things not many other players have, so rather than get the white-black or silver-blue I got a Advanced White Hawkeye crystal for about 2.1 mill. Because thankfully they are still VERY rare, usually only a few for sale at a time on the gtn. Hopefully bioware keeps it this way, some items should always be hard to get or very expensive. Ive bought about 8 of the Vice commandant packs so far and have got next to nothing of high value. Yet I bought 5 of the enforcers packs and bam! Volatile conq saber, cartel lux skiff, relaxed jumpsuit jacket and derelict purp crystal.