The "novelty" never wore off when Firestar_3x had his. If it wasn't raining the roof was down, regardless. Heck we even had it down in the snow.
If the "novelty" of having a topless car has worn off, perhaps it's time to get something better suited to your needs. There's little point in owning a convertible with the downsides that brings, when you could have a stiffer coupé if all you want is the driving dynamics.
Maybe he just couldn't be bothered that day, or forgot!?