I saw a Sony KDEP42XS1 beside Pioneer and Hitachi plasmas in a non-chain TV store (small local group). The difference was obvious - The Sony had sharper edges, no 'streaking' and better colour gradation than the others. Has the dealer 'fixed' it so he sells more Sonys or are they that good? Also is there really £2000 of difference between the KDEP42MRX1 and the KDEP42XS1 (RGB Direct prices)? I read what the technical differences are - but almost £2000worth???