You are not alone in your predicament since Apple broke up Logic Studio and discontinued LE.
If you want to make your next purchase via the App Store (which would be wise for future upgrades) I think you basically have two options:
1) Even though it would seem like you're buying Logic again for the same price that you paid for LE, you would be getting a lot more in the way of instruments, plug-ins, and loops. Sculpture, Space Designer, and all 6 Jam Packs for starters. Not to mention that you would then be set up for updates and upgrades. You may find this helpful in determining what you would be immediately gaining by buying Logic Pro 9:
http://support.apple.com/kb/HT4229
Even though the document shows Logic Studio, if you just eliminate Compressor, Mainstage, Soundtrack Pro, and Waveburner you can still clearly see what you'll be getting. If all this makes you drool 😉 you can get LP9 now or . . .
2) You could wait a bit longer and buy Logic Pro X, whenever that is released.