I have a 50 inch c10 right now. I'm thinking of getting a 46 inch u20 full hd. I find the 50 u20 still pricy so I'm not touch it yet. Is is worth it to get the 46 inch one full hd or just maintain my c10 and save up fo a full hd 50 inch? If you have to choose now, is the 4 inches worth the sacrifice as long as you get full hd?