Best price for Samsung LC24F390FHEXXP 23.5in is P8,615 inclusive of VAT. This is presently the cheapest offer found from comparing prices from 2 shops in Philippines.
Response time is measured in milli-seconds (ms) and represents the time it takes for one pixel to go from active (black) to inactive (white) and back again. Needed to adapt to the constantly changing image on the screen. The lower, the better.