That's a great-looking note. It's going for around $12-15 on ebay shipped, but if you have some other notes you want to add to your world note collection (as I do) you can cobmine shipping with some other notes to get it down to the $11-12 range, depending on the seller.
Some of the other candidates for banknote of the year were very nice as well. The Thailaind 1,000 Baht, the Bahamas $5, the Fiji $50 and the Scotish 20 Pound are all notes I'd like to have in my collection. They, however, are not nearly as affordable as the 100 Peso note.
I also like that the new Zimbabwe $20 made it to the list. I actually have that note, another affordable one.