English is not my first language, but I strive to speak it at its best.
Somehow it really grates me when people say that something is at a "cheaper/more expensive price" or "cheaper/more expensive rate". My understanding is that prices and rates can be lower or higher, whilst products/services can be cheaper/more expensive.
I lived by this rule for a while, however today I spot a phrase "cheaper rate" even in an article on BBC website. Look it up if you fancy, search for "Sony is set to sell the PlayStation 4 for a cheaper price than Microsoft's rival Xbox One." Argh!
Please correct me or affirm my understanding. Thank you.