I paid $30 at Amazon just a few days after it came out in November. After considering tax at Office Depot I paid about $2 more with Amazon than Office Depot, but I also don't have $15 I have to spend at Office Depot either.
Amazon has this for $36 right now, and no doubt it will be at $30 again as tax season swings into full gear. I normally buy almost as soon as the tax software is released so I can figure my refund, but I forgot about my mortgage refinance so I have to wait until I get my tax documents this year. (I try to make my refund as small as possible, but I still get something every year.)