Do purchase or rent them.
Dude, dude, depends on the girl.
Girls don't care about your car. All they care about is being treated good. If your girl won't date you because of your car then she's not worth asking out in the first place.
Burlington Coat Factory has beautiful linens in the home section, and they go for cheap.Its worth it to check them out.
Check with the hall or where your having it first or if your renting tables. Renting is better since they take the dirty ones with them- what are you going to do with 40 table clothes and 150 napkins?
Cheap? You can actually buy white table clothes from Sam's Club for very inexpensive prices. My local Sam's had 3-packs of 90 round Commercial Tablecloths for $33.88. That's $11.30 per table. Round table clothes are more expensive than rectangular because so much fabric is wasted. In most cases, renting is probably best because they take them away and wash them. However, sometimes you can still buy them cheaper than renting. If that's the case, who cares if you end up with dirty napkins and tableclothes? Whatever saves the most money. You can donate the used ones to a local non-profit, sell or loan them to another bride, or keep them for family. Dove Linens (Maryland) rent polyester 90 round cloths for $7.50. Their Imperial Stripe for $12.40, Damask for $15.00, and Sparkle Crepe for $13.40. It just takes some research to see what is the best deal. I'm not sure there is one generic answer to your question.