Actors get to write a lot of self-care and grooming stuff off, anyway. Like arguably they have to get manicures for work. If you have to buy something to wear to what's basically a televised work event, something that showcases your 'brand' to the public, you at least have an argument for writing your expensive gown off. Or you could auction it off on Ebay. Or just consign it to recoup some of the costs. There are literally SO MANY options here that go beyond whining on Twatter.