Lo barato sale caro.

Or it other words... 

On the first day of a Spanish class that you're merely taking as a fun refresher, when you find out that the book costs $140... you highly reconsider the class.

Then you find a great deal on Amazon.

After you hear that it's been shipped the next day, you wait anxiously for 11 whole days...

and end up with this.

Translation: You get what you pay for.