Help deciding on mixer

Please help me decide which mixer, if either, is a good deal? Thanks in advance!

Both are second hand, $150, sold by a reputable local seller, and are able to be tested. They also include all standard attachments and bowl. Both have some cosmetic damage on the paint.

KitchenAid professional HD stand mixer, 5 qt bowl, bowl lift. Model KG25H0X0B, made in 2009. Claims to have been inspected and regreased before listing. (Black)

KitchenAid K5SS, 5qt bowl, bowl lift. Listing says no serial number so it cannot be dated. (White)