The phrase "cheapest price" means the lowest or most affordable cost for something. It refers to finding the best deal or the least expensive option. Full definition
I agree it's hard to find clothes at cheaper prices for women above 40. (40plusstyle.com)
If you are still looking for a place to rent, pick one that will make you eligible for cheaper prices on your renters insurance. (rentersinsurance.net)
The palette is worth the super cheap price of five dollars. (smashinbeauty.com)