Hi, Long time reader, first time poster. I've been looking for a 4K monitor for MBP and was wondering if 4K UHD tvs are a good choice as monitors. Especially http://www.amazon.com/gp/product/B017VXTYKU/ref=ask_ql_qh_dp_hza 40" 4K tv for $599 is a lot less than 40" 4K monitors so there must be some caveat I don't know about. I can't seem to think of any. Thoughts, comments? Any help appreciated.