The pair that I bought was exactly what I was looking for! Great frequency response for the driver size and at a reasonable price. Granted, Sony has some really top-end merch, but I would consider this on the lower end of the spectrum. I figure these will last me around a year or so before I mistreat them beyond usability.
Take a look at Amazon for competitive pricing as well as other brands, SkullCandy is another recommendation of my own, cheap yet durable.
Happy hunting :)
Thank you Svrdhd! Those are most reasonable and look interesting. :)