You might get those prices in your area. Here, I couldn't get anywhere near that much even with controllers, since Utah is a tough gaming market.
You can fix the optical drive sticking very easily by removing the small rubber band that's just inside the drive and putting it in a coffee mug and microwaving it for 30 seconds, then wiping it off. (Do not use cleaning products!) Easy process, just need some tweezers. I can walk you through this step-by-step if you want, just PM me and we could talk.
If your console is so incredibly loud that you can hear it over "muted" gunfire, then that's not normal. I'd venture a guess that your Xbox is dusty as Hell inside. (This is not a slight on your cleanliness, as everyone has dust.) For fan noise, cleaning your console with a can of compressed air will
help.(EVERYONE] should be doing this at least once a month, regardless of what console you have! Dust is the #1 console killer!)
You can also buy a Talismoon fan that will reduce noise by at least 60% while increasing airflow as well. Love these fans!
The Slims are quieter, but at a huge price increase. Cheapest I've seen a 4GB is $150...but then, you have to buy a hard drive as well. 250GBs will run you $250 average.