I have had that exact Seiki since it was released last year. It has broken twice, I'm on my 3rd set. The picture is subjective and from far enough away about any HD will do. However after having spent time with last years award winning Panasonic plasma from CNET the Seiki has bad picture quality. It also has an overscan that can not be fixed without entering the service menu each time. Based on lots of reviews the Seiki is bad and Vizio has been producing better quality picture this year. 4k games look great but is limited to 30 frames per second or Hz. Also it does not have h.265 the new encoding to watch 4k Netflix. Now I have the LG 4k 2014 model and it is marginally better but I will be exchanging it for the Vizio if reviewed well or will pay for a sony or Samsung. It sounds like you are strict with your budget so I would not worry much about 4k, it is better but not as good as dvd to blu ray good. Also PC games at 4k require a $1000 computer or more. My graphics card alone was 1100.