Currently have a 50" Samsung Series 4 Plasma that I bought approx. 4 years ago for £ 490ish. The Plasma isn't the best there are some visual defects which tend to disappear when the TV has been on awhile and its only 1080i, no 3D or smart features and standard freeview not freeview HD. Thinking of upgrading to a Sony 50" Smart 3D LED KDL50W829B for about £ 750 ex VAT, I have the money in my bank account ready to be spent and I am just waiting to pull the trigger. Would it be a worthwhile exercise to replace my 50" Samsung Plasma with the W8 Sony?