I need help choosing between the M43-C1(2015) and the E43U-D2 (2016). Both are 4k and 450$ the M has a reduced price because it's discontinued. In fact if your shopping vizio for a 43inch 4k your choices with be E or D series after this M model sells out due to the new M series starting at 50inch. Is this new E43 a better unit? Can someone crunch these specs. Thanks