I totally agree - if you can get them for $200.  It looks like the non-Samsung memory ones are going for almost $250 retail though (at Overclockers UK), which makes me pause.  I feel like as soon as the non-mining variants are less scarce the mining will lose value much faster than the non-mining variants.  The safe long-term bet is to get the 8GB variant with Samsung memory, but then you're talking over $350.