...and after further searching, i found that that link just links to ebay ads selling the cupholders shown. if you have ASC, then youll want the 20$ one, w/o ASC then you could choose either, or both just in case you have kids or want holders for your rear passengers.

ive actually found that the area between the seat and the door right next to your ass is a great place to put cups, bottles, cans..etc. just dont forget to grab it before you open the door cause itll fall out..trust me, i still havnt learned.