I do commissioned photography in South America. Often travel to there from the UK... and without knowledge of Spanish language, that wouldn't be happening.
i know what you're saying though:
Jus because someone's got 10 images from Buenos Aires with a stock agency doesn't mean they can deduct a Spanish course from tax.
in my case, though: had a well-paid commission (£4000 + expenses) for 5 days of work, which involved taking pictures in the presidential palace in Asuncion/Paraguay.
Believe me – without Spanish, I would NEVER(!) have gotten into the palace.
