For 250K you can get a certificate for 120K skymiles and a 7 night Marriott hotel certificate for almost any Marriott resort in the world, with the exception of a few, the category 7s that Marriott has. All Marriott Hawaii resorts are 6s.

Last I checked it was 60K 1st class per ticket to Hawaii, but that may have went up to 75K recently. At the very least, you can get 2 first class upgrades, which is a great value as well.

I think the certificates are 087 or 089, one of those, I'm pretty sure.

Regards.
Joe