Before I continue, I am bias and found the rewards/perks super incentive.
I understand that there is no payment or any contract or obligations that Google is to give us rewards. I figure it was cool idea or concept especially with the discounted movie deals. It would be awesome to get those movie perks back :) Out of all the incentives, food and movies were the best ones. It really push me to continue reviews and explore. I even got a buddy to join me. Unfortunately, he caught up to my level.
This is more of a feedback to Google. I really enjoy the internet points and badges idea, it gives me a sense of accomplishment. Maybe adding titles as option to our names, so it shows in our reviews.
Local Guide. Chris O. (Cartographer of Mountains or Mountain Dweller)
It is very much like the title systems in video games where you can equip titles to your characters to show your expertise or boast on your accomplishment. They give you names like Cartographer of the Western Isles or Sweet Tooth (for consuming the most sweets) or Dwarven Drunk (drinking alot)
Museum Hopper (visit more than 15 museums)
Food Junky Photographer ( photograph more than 20 foods in your pictures)
Star Gazer (submitted at least 10 professional shots of the night sky in different cities)
Sand Lover (3 photographs of 10 different beaches)
Bar Hopper ( review more than 15 bars)
TheWorldTraveler (submit 1 picture from each continent or submit 2 pictures from 10 countries)