Sony India — Sony bravia 55 inch LED TV display vertical lines

I bought Sony Bravia LED TV 55 inch model 2 years ago. Suddenly it started to display vertical lines. Contacted sony service and they say panel need to be changed which will cost 26400 INR/-. This is already expensive model and again I am being asked to spend big amount for repair. I trusted Sony brand but now regret buying this model. Not sure if repairing panel is worth it.