Just in case you held off registering, pay attention to this-
from the Portland Marathon website this morning:

A FEW ENTRIES LEFT - HURRY!
HURRY...WE WANT YOU TO PARTICIPATE IN OUR 35TH PORTLAND MARATHON.

OVER 400 OF OUR REMAINING ENTRIES HAVE ALREADY BEEN SOLD. THE REMAINING 200+ WILL BE OFFERED ON A 1ST COME 1ST SERVE BASIS UNTIL SEPTEMBER 12TH. (When these are gone this message will disappear).

IF ANY ENTRIES ARE LEFT AFTER SEPTEMBER 12TH THEY WILL BE SOLD AT A PREMIUM PRICE OF $135.00.

Thanks for the tip-off. You just saved me a lot of money.

I was holding off until I found out if the 21 miler killed me. If it had killed me, I guess I wouldn't have registered.