Should I buy now.......or wait

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http://forums.androidcentral.com – I'm in the market for a tablet and since owning the nexus 4, I want to only buy nexus products. I want a 7 inch nexus tablet which I know I can buy now for 199, but with May approaching, I'm sure a new 7 inch tablet is on the horizon. It's not a dire necessity to get the tablet now but May seems soooo far away (LOL). Any advice/suggestions? (HowTos)