The usual rule is you get what you pay for but after reading thousands of posts I can't remember complaints about quality or value in arduino products. If you include the clones then your talking about a $3 Pro-Mini. How can anyone complain about that ? If you want more power , pay more money.
BTW-It's very hard to find prices for the higher end board. The above was the only link I could find for prices of some higher end boards.