Actually I do understand German and have just booked a last minute holiday to Lisbon today on a German only website - in Germany - I leave on Friday.

However, as mentioned before, there is always an element of worry when you are making payments and accepting terms and conditions in a language that you are not totally fluent. (even translate tools can give totally the wrong inflection of a sentence)

If you get it wrong and click on something which means the exact opposite of what you think and the payment goes through, it can be a real pain back tracking and chasing down your mistake (and money) - especially if you need to communicate in German to do this.

I am all for having the English option where pennies are involved.