Xperia Pro/Neo/V/L :: Walkman App With Clear Bass?

Now I see that Sony has launched cheaper models with less specifications than MK16i like Xperia tipo, miro(Priced around INR 9000). I see that even these cheaper phones come along with WALKMAN app with CLEAR-BASS and MANUAL EQUALISER. If you can provide these features to the cheaper handsets, why cant you provide the same to the 2011 series of Xperias? It is our right. We have paid you and we need to be valued. I'm waiting to get the WALKMAN app in my phone. I already have ICS in my phone. I never thought that Sony would be so partial.