Go to eBay, search for HTC Rezound in Cell Phones & Smartphones catagory, scroll down on the left and tick Sold and/or Completed Listings... You will see the actual selling price for SOLD auctions (prices are green if on a PC) of an HTC Rezound $95 to $190 depending on condition and accessories, new in box is around $225-$260, so the average for a G/VG Rezound with "standard" accessories (charger, maybe a case) is about $140. Swappa.com confirms this with 6 Rezounds currently available for $135-$190 and recent sales averaging around $150, again depending on condition accessories.
I don't normally pick these types of posts apart, but I am just in the mood...
1) Yes, it is a dual core phone... an irrelevent point. Most phones are still dual core except high end phones of the last 6 months or so.
2) Yes, actually it was high-end when it was released, and was still highend until the last round of phones released around the time of the SGS3, and is still on the high-end of medium range phones today.
3) Good luck using that Nexus 4 on Verizon, it doesn't support VZW's 4G, never will.
4) True, iBeats are not "the best" headphones, but they are good, quality built, and sound very good. If you know audio then you know sound quality is a very subjective issue. The retail price tag might be more than worth to audiophiles, but things have value for more than their quality, and these headphones from the Rezound still sell for $45-$60 on eBay, which is about what they are worth.
5) Yeah, gotta agree with this one... unless it is still NEW and untouched, you will not get over $180 irregardless of condition, and the price will do nothing but continue to drop