Find used tennis machines online at alibaba.com, ebay.com and sportstutor.com as of 2015. You can also find tennis machines in your area by checking the classified listings of your local newspaper, searching your local Craigslist site, and by checking the bulletin board of a local tennis club.
You may prefer to find a tennis machine from a local source, as the weight of the object means postage is likely to be expensive. Because of this, it's smart for buyers to exhaust their local search options before expanding the search. If there is a local independent sports store located nearby, ask if they deal in used tennis products or if they can recommend somewhere that does.
Craigslist pages return local results and may bring success if tennis is a popular sport where you live. EBay results show tennis machines across the country, but you can categorize results in order of distance from a set location.
If there are no satisfactory local results, you need to have the item shipped. It is worthwhile looking for tennis machine at used sports stores in nearby cities. When buying a used tennis machine, ensure you understand the quality of the item and what exactly is included in the price, such as warranty or any extras.