On the bright side, the satisfaction you can get from fixing things should not be underestimated. Try to repair rather than replace and enjoy the glory of knowing that you're the type of person who would survive an apocalyptic movie. What's more, the more you fix, the better you'll do. Finally, if the repair costs are less than 50 percent of the original purchase price, you may consider taking care of the repair yourself and hiring only someone else if you really need it.
In general, you can repair the body of a lamp the same way you would repair other items made from the materials the lamp is made of.