I've already placed my order for DELL 21.5” fullHD monitor (S14ST2210MY) for $609. Just the basic spec without any added accessories. Add $40 more can get me 23” but I'm just fine with 21”.
What's more, the priceis just a little bit over from my initial budget. Its always so tempting to go one step higher for the spec looking at the slight price difference. Later if I choose the 23”, I'll then be tempted to get the24”. You guys know what I mean?

I think they did this because they want to design the LCD more compact design , there's even none mountable hole at behind of the LCD  . reduce heat also perhaps?