You can spend hours in the garage with a toothbrush, tubes of Solvol Autosol and rags cleaning and polishing them. Spoked wheels allow a certain amount of flex and theoretically are less likely to crack when given a hard time when riding off road. They may also be a bit more comfortable as this flexing acts to some extent as a shock absorber. Spoked wheels with alloy rims also look very nice on cafe racers.....