Ok, this may be a stupid question, but what is the difference between a regular Fender/Squier STANDARD strat and an Affinity Strat?

I've been thinking about this question for a while Thanks
The standard is a couple more bucks and has a 2 point tremolo. The affinity is cheaper and has a 6 screw vintage style.
I think Affinity means it's cheaper in quality and price. Or, a lower end version of it. I may be wrong, though.