Liepzig is important for Sony, but TGS is important to Japan and a good portion of the world (which includes Sony). TGS > Liepzig
The only reason Liepzig is getting this much attention is because E3 was downsized. Otherwise there wouldn't have been much of a point. TGS is where all the new games and '08 lineups will be revealed, if not at E4 too.
Tag - "No trolling on my watch!"