well, prices have dropped some 15 to 20% in the six months since all these dopey realtors advised you to buy... Buy when the price to buy seems reasonable with the rent the home would cost, the tax writeoff is not as big a deal as realtors try to make it out. First off, when using mortgage interest as a writeoff, it replaces your standard deductions. That is already a fair chunk of it for most people. Second off, it isn't a credit its a deduction, so say you have 15K in mortgage interest, and your standadr deduction was, 10K or whatever (i think married is slightly more) well, you are only getting to deduct an addtional 5k, and if your tax rate is 30%, you saved $1500 for the year. Likely, home maintenance which nobody ever mentions will be more than that.
I have many resources to help evaluate whether or not you should buy. Feel free to contact me, and I will send them to you for free. You don't even have to promise you use me when you buy, I am that confidant that honest advice is more valuable than typical realtor, "you should buy now" nonsense.