They just have to check the Sony website so as not to be ripped off. It clearly mentions that the 40GB model is NOT backwards compatible with PS2. It doesn't mention the 60GB model though.
*www.sony.co.in/productcategory/gam-ps3-console?site=hp_en_IN_i
I couldn't find the MRP of XBOX 360 Pro on its website, so I asked their customer care. The cost for the Core I got from shops here in Hyderabad. I wish I had bought the 360 Pro last december for 15k!!!