A $2000(!!!) sofa should last you a major phase of your life. If you have three newborns then it should take everything they can throw at it for the next ~20yr. If your kids just moved out for good it should be the last sofa you ever buy.

That said, you don't get what you pay for, you never get more than you pay for. Not being an expert in evaluating sofa quality I'll take the cheap Ikea sofas that last half as long.