Well...Does anyone know if any other spa manufacturer or spa cover manufacturer sells a hard plastic insulated spa cover. I thought this one looked well insulated, reminded me of an igloo cooler cover and is filled with 3# closed cell foam. Is that good or not? I have seen other spa covers disintegrate from the sun after a few years, and this one has a lifetime warranty. Also since buying a spa from Costco is frowned upon, does anyone know if Strong Spa's like these are sold at local spa stores? I live in southern California. Thanks.