Being at the San Telmo antiques market one can negotiate everything, but the secret is not to push too hard, as the seller could get annoyed and not want to serve you anymore.
From entering the fare you will be welcomed by many booths that sell paintings and photos took in each period. Buying one of these souvenirs is good as it is a nice memory to have and it does not cost more than 10 euros. Then you can stop at the CD booths. Here you will find the Argentinian editions of the Beatles or classic pieces of famous orchestras from Latin America.
If you are a porcelain lover this fare will not let you down. This especially due to the fact that an entire part of it is dedicated to these kind of shopping: plates, tureens, salt-cellars, all ornamented with taste. Anyhow, for the porcelain souvenirs one should be prepared to pay more, starting from 20 euros minimum.
The glass and the small perfume bottles are as well representative for this market. Likewise, the prices range from 20 euros minimum. In addition you will see many things such as leather traditional boots, cowboy uniforms etc.
Overall spending the holiday in Argentina is rather cheap in comparison to other places. A dinner can even cost you just 5 euros. With 20 euros one can eat at the best restaurants in the city. Enjoy!