I read your other post Minnie, great to see more posters here visiting the same matches.
You are lucky to have both a slam and the WTF in your country currently.
Did you witness Roger receive the year end #1 trophy the day after he beat Murray?
That really sucks about Wimbledon 2009... how does it work, do you subscribe for tickets for a certain court and day, or just a court and have to wait which day you get? I may try as well someday.
In general, I think WTF is one of the best choices to visit I you are not a regular tournament visitor yet (like me) and just want to see some top players for the first time (like me). If you get tickets for 2 consecutive group days you will see the entire top 8 barring injuries, while at other tournaments you are often not sure who you get to see at a certain court, or your favorites may be eliminated early.