More seriously, had you ever heard of any of those before googling them up? I hadn't, but I did know Tiger Direct. In order for a lawsuit to go anywhere, you have to show a substantial likelihood that people will conflate your trademarked company/product with someone else's company/product. If nobody's ever heard of the other guy, you're not going anywhere because there's no likelihood of confusion.
I Googled as I never heard of TigerDirect. The only goods I associate with Tiger are the Uniroyal Tiger Paws and a good Nepalese beer called Tiger.
Swordmaker was confused when he went looking for Tiger Direct software and found OS X 10.4 instead.