If your appliances, lawnmowers, or hairpieces fall apart just after the warranty expires you may not necessarily be out of luck. Maine has an Implied Warranty Law that defines how long items should reasonably last. You shouldn't have to purchase an extended warranty for most new and used goods purchased for family, household or personal use.
"As is," for anything other than a used car, means only that the seller is not giving you an express warranty. Maine's Attorney General says that there is an implied one.