My thinking is that Froogle is the price comparison tool. Why is pricing info allowed in Adword titles and descriptions? I've seen the negative effects, are their any positives?
I have no problem being more expensive than my compeititors if I offer something they don't, or if I'm higher quality.
I want the people who click on my more expensive product ads to be those people who might be spending that much, not people looking for some cheap solution.
If I'm selling a $10k software package, and a user is looking for a $50 solution, then my site is not appropriate, and I don't want to pay for their click. Adding the price in my ad, means I won't get many of those clicks for cheap solutions, I'll get the people looking for high end solutions.
Also Google editorial staff check the adtext and if the price is wrong/misleading they will suspend the ad.
If they notice the misspellings, which they do most of the time. I've had several ads with misspellings go through QC, only to realize later (usually when I added a similiar ad to another group that was rejected b/c of spelling) that there were misspellings.