Milwaukee, Wisc.-Flush with great crop prices, farmers appear to be stepping up and making large equipment purchases toward the end of the year, according to recent statistics from the Association of Equipment Manufacturers. Sales of self-propelled combines were up 44 percent in November over the year-ago month, while year-to-date sales are up 15.6 percent. November sales of four-wheel drive tractors were up 88 percent in November and 21.6 percent YTD. However, farmers appear to be going for the big ticket tractors, as total farm tractor sales were off 1.5 percent in November. They were up .5 percent YTD.