i'm gonna be the one to post the crazy comment of playing battlefield with it. I remember doing this in Battlefield 2 which is probably the last time i had a flight stick hooked up to my computer. It made for an absolute crazy experience when flying.
Congrats! I just bought a PS4 also via Buy.com's Ebay store. Got it for $360 with no sales tax and free shipping (toot toot) That said, i've also been stockpiling the PS4's PS+ games for a few months now so when i turned it on i already had a 15 games waiting for me to install. It's because of this that i think you're making a huge mistake ignoring the value proposition of PS+. Even if you have no intention of playing multiplayer games on your PS4, the total cost of the games i have in my library because of that service far outweighs the $50-60 a year cost of it. Especially if you own another Sony device like a PS3 or Vita.
Also, since we're on the subject of the value of PS+, newegg's ebay store has year memberships for $40. Try it out and if you don't want to keep it, don't renew it. My first actual purchase for my PS4 was Diablo 3 that is out today. i did the digital version of that because i know it's something i'll come back to for a while.