Hello all again, sorry for bumping my old thread. I think it's better than creating a new one. I had a look at the covers and here is the ones I worth buying but need opinions about it.
http://www.amazon.com/dp/B005KELWJY (thats my favorite, at least I trust the brand Belkin)
http://www.amazon.com/Marware-Atlas-...5252433&sr=8-4 (bad smell complain)
http://www.amazon.com/MoKo-Cover-Ama...5252433&sr=8-5 (bad smell complain and leaves marks on back of device)
http://www.amazon.com/Marware-Atlas-...pr_product_top (bad smelling issue again)
http://www.amazon.com/splash-SAFARI-...255599&sr=8-40 (not sure about the elastic strap is good enough or not and some other complains)
There were other options also but those ones outstands compared to others. Also can you recommend any other site that I can check for kindle covers, except Dealextreme. I think 25 $ is an OK amount to pay for buying a good cover, but I can't offer any more expensive.