During a CBC roundtable, a reporter claimed that the Liberal Party will release television ads shortly, to counter another round of Tory attacks ads. There was no qualifer, but assuming this is true, I think it's a great idea.
No matter the financial reality, you simply can't let these Conservative ads run without a response. The ad buy doesn't necessarily have to rival the Tory expenditure, because media coverage will provide another avenue for exposure. What is critical, fighting back and not allowing the Tories to define and mis-characterize.
I would speculate there has been much debate over the tone of the ads. Dion is on record rejecting attack ads, and has argued for the high road. This fact suggests ads with a positive spin, which will attempt to contrast Harper's preference for the gutter. Having said that, I hope the ads aren't completely warm and cuddly, because there are some important themes that we need to cultivate, as they relate to the government.