I don't really want to rip off a n00b. Besides, a Lv.X for a Lv.X (that is, SF for SF) is a fair trade, since almost all the Lv.X's have playability.
I think the problem with what brick11 said is that he would attempt to trade a lvX that you'd have to get from a booster box for a lvX that you can soon get from a tin. So, you have a lvX that can be worth $15-$30 being traded for a lvX which has a value standardized at about $15.
Other than that though, I actually don't see a problem with the trade that brick11 proposed. Personally, I think Dusknoir lvX will see very little play. It may cause people to play a few more stadium cards, but most people play Dusknoir to Dark Palm, and these are 1-0-1 lines. Throw lvX in there and you have to devote more cards/resources to support the evolution line. If you're going to use the Shadow Command one, then you still have the problem of getting the lvX KOed and then reviving the normal Dusknoir in order to continue using Shadow Command. It'll only see use in decks devoted to Dusknoir, but there's still no synergy there. It's basically a trade between a bad lvX and an unusable lvX. Raichu lvX, on the otherhand, will probably be valuable because it is a raichu.
People, staying up late at night is not good for you. My first period teachers, especially my French teachers, always commented on how unawake I looked (and that's just how I looked, class participation not included :redface
. Staying up late at night also makes you more prone to acne. Worse if you stay in bed/room and stay awake at night because then your brain no longer associates your bed with sleeping, which makes it difficult to go to sleep in your bed at night. But if you must be up late at night, it'd better be for homework.