Of course there are also users in Spanish speaking countries that just have the english UI but still enter Spanish searches. Anyone experience with what the best setting is from a volume perspective? I can either stick with this or select all languages and the Spanish speaking countries?
Our volume for Spanish words in the U.S. site is about 5-10% of what our english words get. For G MX, we again get about 5-10% of what our U.S. google campaign gets.
This will vary a lot though depending on what you're targeting, and if you sell/ship to other countries, etc, so think you need to actually set up the campaign and see what kind of numbers you get.
I was under the impression that U.S. targetting would only send traffic from U.S. IP addresses - and the language would determine whether the search comes from www.google.com or www.google.com.mx. Is that correct?