The case he's referring to is a customized AT case for a pair of 480s and and extra pair of caps, nice size for a taping bag (though hardly worth $100
).
As folks have mentioned, the mics sound very different from one another. You might want to try getting some downloads of shows/songs with the different mics from archive.org. You might also want to put up a question in the team board section in both the ADK team thread and the Team AKG thread. You might get more input on what people like and dislike about their mics there.
Also, you should put some thought into what you're interested in running, as well as the sound you like best. The TLs are a great deal if you want to try running a variety of mic capsule patterns and as was mentioned, going this route with the AKGs will cost you a lot more. You should also think about the logistics of running LD mics like the TLs. Bigger mics, bigger taping bag, harder to set up, harder to arrange a clamp on someone else's stand, etc. It might not be a big deal depending on your own preferences, but to some it is. I never ran LDs for this reason, and I know several people who got out of LD mics (TLs, U89s) for reasons having more to do with the logistics of running LDs than for differences in the sound.
Bottom line, it all depends on your preferences. Both the TLs and the 480s are great mics, you really can't go wrong either way.