How much should I sell my xbox 360 elite (black) 120GB HDD?

I would most likely go with:
Xbox 360 Elite: $150-200
Glow controller: $25
Turtle Beach Headset: $45
Wi-Fi Adapter: Depends on type, $50-200
Kinect Sensor: $40
Halo 4: $35
GTA 5: $50
Halo anniversary: $30
Max Payne 3: $30
Mortal Kombat: $20
Assassin's Creed 3: $40
Halo Reach: $40
Halo 3: $30
Halo 3 ODST: $35
For a 3: $35
Rage: $30*
Red Dead Redemption+Undead Nightmare: $60
Skyrim: $45
Minecraft: $40
*Indicates I'm not certain
Total: $1,030 approx.

First of all you try selling somone a bundle deal for a opiniated price there going to low ball you, sell it seperatly go on amazon look at how much there selling there stuff for then evaluate the condition of your stuff and lower the.price or set it equal to the given comparison and sell it on ebay or amazon

You won't get more than 200. I have a 500gb ps3 slim ny girlfriend bought me for i think around 300 or 400. And i would bary get a dime for it. Go for 215.

Do price comparison. Literally go one by one in "completed listings" on Ebay and you can find out what price bundle consoles sold for most often, and do a fairly similar price and have it sold within a matter of about within a week. A recent bundle pack with a similar assortment of games sold for $260 in a "buy it now". The headset and wireless Wi-Fi adapter may add value, so I would maybe bring it to about $400 to $450 for starters and lower the price if it doesn't sell. Your most likely amount you'll get for all of that is closer to between $220 to $300, but it's good to start out a bit high as a game you might have within all of them may be worth it to an individual.

Just pick a minimum price you wouldn't take any lower and then put it on eBay and let people bid it up.