Dell Vostro 2520 Laptop (3rd Gen Ci3/ 4GB/ 500GB/ Ubuntu) is deprecated?

I decided to buy laptop with configuration as below
3rd Gen Ci3,
2 GB RAM
500GB HDD
and decided to buy Lenovo Essential G500 (59-380860) but one of my friend suggest me to look in to that Dell Vostro 2520 Laptop (3rd Gen Ci3/ 4GB/ 500GB/ Ubuntu)

Some one told me that Dell Vostro 2520 the above is deprecated, we not able to get the assistance and clime service warranty on time for this model.

I'm going to buy laptop from Flipkart

Lenovo Essential G500 (59-380860) Laptop (3rd Gen Ci3/ 2GB/ 500GB/ DOS) --- Price 29000.00
Dell Vostro 2520 Laptop (3rd Gen Ci3/ 4GB/ 500GB/ Ubuntu) --- Price 27523.00

Which one is best to buy.

http://www.flipkart.com/...dbokhiriya

http://www.flipkart.com/...3d4a209298

Added (1). <a href="http://www.flipkart.com/lenovo-ess… G500 -59-380860</a>