If you can, you might want to wait a bit.
It seems that no company can keep a secret for very long. With I/O fast approaching, Google and ASUS are in the spotlight again as details creep out about a pending refresh to the Nexus 7. According to Reuters, two undisclosed sources have leaked plans for a likely release date around July with pricing as low as $149. The tipsters also let slip that the revised tablet will be packing an unspecified Qualcomm Snapdragon processor and that Google hopes to ship 6-8 million units before the start of 2014.
Rumors are often wrong, etc., etc.
But if the new ones are going for as little at $149, the old ones will be even cheaper.
HTH.
Cheers,
Scott.