It’s amazing how few other words there are that directly substitute for 'luxury'. Plush and sumptuous work fairly well. After that, everything else has a slightly different flavour, or carries other connotations. Lavish, for instance, implies decadence, excess, or even (heaven forbid) poor taste. You can’t imagine yourself as blissfully immersed in elegance as you can luxury.
Still we only have a few more pages to go in our extravagantly opulent 2012 holiday brochure. Camping next summer, anyone?