THIS ISN'T HAPPENING
Is this available in the US? The normal online stores do not have it.
At one time Firebox sold Loopin' Louie in there US online store, but there aren't any current plans for stocking it again. You can still order it through their UK store: http://www.firebox.com/product/1390. It's about $45.50 USD shipped. I've ordered through both the US and UK sites and have had good experiences.
I do know that amazon.co.uk also sells Loopin' Louie for a few pounds less, but I'm not sure if they ship toys/games to the US. Other than that I haven't seen it in stock at any of the US game sites for quite a while (Boards and Bits used to sell it for $35 before shipping).
Good luck finding a copy. It's absolutely worth the $45 in my opinion. Alternatively you can order Bobbin' Bumblebee (see this thread: http://www.boardgamegeek.com/thread/308441), but I'd recommend steering clear. Loopin' Louie is FAR superior!