(live in the US) -- when i hit platinum i was offered 6 months of Hulu Plus or something else. as you can tell, i took the Hulu since i cant remember the something else.
the gifts have trended down... if i remember correctly 4 years back was 50% off an award redemption, 3 years back was a free WN, 2 years ago it dropped to $25 (or $50) GC and then last year was custom luggage tags and something else...