Even when you don't get new models so fast, you'll get manufacturing updates on existing products that can affect their reliability both good and bad. The best

Even when you don't get new models so fast, you'll get manufacturing updates on existing products that can affect their reliability both good and bad. The best you can do is identify the manufacturers who have a reputation of building good stuff, and hope they don't sell their name to someone who wants to make a quick buck by trading on their reputation.