pharmacal is $42.99. >>> some stocks on the wall street return to the heart land where hot, dry, weather is threatening some crops, especially corn, soybeans and wheat. temperatures are expected to be above average during the next week and a half with little rain expected according to onestment. july and august will be the driest since 1936 in iowa, illinois and indiana. but as jane wells reports, the recent heat wave isn't stopping many farmers from investing in the new big thing in farming, technology. >>> drought or no drought, the u.s. farm economy has done well for the better part of a decade. strong balance sheets and tax incentives encourage farmers to spend, and they have. >> it's been an excellent couple years. >> reporter: how much does it cost? >> probably more than your house. >> reporter: but as the nation prepares for what could be a record crop or close to it, corn prices have fallen 40% from their $8 highs. and while all equipment manufacturers expect solid, perhaps record-breaking sales this year, next year farmers may take a break. >> they are at a point now where buyin