I like my Bugeye's hardtop so much that it is virtually a permanent feature. It's some kind of aftermarket hardtop, much lighter than the factory one; very simple, smooth design and IMO looks really good (see my signature pic below).
I know it seems like a shame to miss open-air motoring, but with the side curtains in the boot (also pretty permanently) it's still pretty "airy" and the hardtop keeps the sun and rain off me on the long trips I typically use the car for, such as 930 miles, each way, Louisville to Waco roundtrip last July, and 325 miles each way, Louisville to Guntersville Lake, Alabama, roundtrip in October.