Selling Road Bike for $150

Selling my Merax 21-Speed 700C Road Bike Green (58 cm) for $150.

I've kept it in great condition (always stored it in my room so it looks like new). It's a fast bike that's pretty fun to ride. I got it Fall quarter because my other bike was stolen and I'm selling because I'm leaving campus soon and want to get it to someone. It's listed on Amazon for $200 for this size (http://www.amazon.com/Merax-Speed-Aluminum-Racing-Bicycle/dp/B00U5TYFF2/ref=sr_1_1?ie=UTF8&qid=1457466286&sr=8-1&keywords=merax+700+21+speed). Seat is set for a tall person right now (I'm over 6 foot), but can be lowered as well.

One point to note: It makes a generally quiet grinding noise sometimes. Got it checked at the bike store, they said that there are some bearings that are loose, but not seriously so. It'll cost about 45 bucks to quickly replace it on campus, but they've said it's worth waiting it out. There'll be no damage to the bike, so you might as well get as much value as you can out of the current bearings and only replace if the noise becomes annoying, which it never has for me! Hence the lowered asking price, which I think is fair since it's also already been assembled here.