My 20th reunion occurred when I had a bit over 2 years in recovery and since I had lost touch with many, I did not go. Didn't make the 30th or the 40th either, lol.
However, in the last few years have been in contact with a few from the 'old class' and have become involved with helping with our 50th which will be in 2013. I am amazed at how many others are active, about 70 so far out of a class of 358. I suspect it will be a 'real hoot'. Of those I am in contact with, there are several (more than 10) that have been active in recovery for some pretty good long times now, so ....................... I think it will be interesting.
However, only you can decide if this 20th reunion will be a "Slippery Place" for you or not, and if your are 'wavering' any at all, maybe take the 'safer' position for this one, and look forward to your 30th.
J M H O
Love and hugs,