The seats won't get dirty when you're forced to step on them, or use them for tables, and will stay nice looking a lot longer. It was a snap on instrument panel cover with eisenglas windows in it so you could see the instruments, etc. Like a soft keypad, you could even work the rocker switches under the eisenglas. This is a great idea for keeping salt spray off of instrument panels. So great, in fact, that the panel on this 10 year old boat looked like new.
Many boats have plastic materials on the instrument panels that are very sensitive to sun light.
Plastic simulated wood grains and so on. And many people never bother to cover them, even when covers are supplied with the boat. Or the panel may have a plexiglas cover that allows water to run underneath it, resulting in corroded gauges, wiring and connections because the leaks go right through the panel. It's your money and you don't need me to tell you what you should do. Inc. All rights reserved.