The best time to buy many seasonal products is the off-season when demand is low. With that in mind, take a look at this deal on Coleman’s Weathermaster 10-person camping tent. The list price is $349.99, but with various discounts throughout the year it typcially averages closer to $250. Either way, today’s price of $122.87 is the absolute rock bottom, having reached this point only a few times in the past year. For this price, you can buy two and let the kids have their own fort for the basement or back yard! Coleman describes this model as “cabin like” at 17×9 feet, with room for three queen…