re: Munich Oktoberfest advice

We just went last November. We deliberately missed the crowds of Oktoberfest, but we caught the crowds of the Christmas market. Advice:

1.) Study the rail map. We were caught with the wrong ticket, even though the guy at DB Bahn swore it was the right one. the S1-S8 and inner/outer rings can be a little confusing. Just google it and stare at it for a bit.
2.) The hop on/hop off tours aren't that great, as they don't speak English on most. Rail is really cheap, too.
3.) Oktoberfest is to Munich like Mardi Gras is to NO/Bourbon Street. The tents can be a tourist trap. You can enjoy the beer and oompah bands in the hofbrauhaus any day.
4.) Take a WWII walking tour. It's amazing the history right there in Munich.
5.) If you like BMW's, there museum is worth a couple hours to visit.
6.) I didn't visit Dachau, but it's right there if you want to visit it.
7.) Neuschwanstein castle is a car ride away if you rent one. Can't reach it by rail, but if you do rent a car, it's an option. Neat castle to tour. Disney modeled their castle after it. BTW, sixt may be your best bet for renting a car while you're over there.
8.) There is beer everywhere you go. You'll drink plenty without building your trip around it.
9.) Hotels near Marienplatz are little more expensive, but that's pretty much where the most walking will take you. If you can get a good deal on a hotel right there, I would go that route. Again, it could be expensive though.

More may come to mind.