Like they say...
"If ya can't run with the big dogs, stay on the porch"
Yes, 10mm ammo is slightly higher in price than most other rounds so, if you don't like or can't handle the prices, reload your own.
I can load full power 200 gr. National FMJ for $115.00/1,000 or Winchester 180 gr. FMJ for $130.00/1,000.
If it's HPs that you want, I can load 1,000 rounds of Winchester 175 gr. STHP for around $180.00/1,000 or $9.00/50 rds. National or standard Winchester HPs would be less.
These prices are purchasing the powder and primers locally and the bullets on line. This doesn't include the shipping on the bullets becasue you would have to pay that on loaded ammo anyway if you ordered it on line.
If you lucky enough to have gun shows in your immediate area, you can most likely find powder and primers for less.
I didn't include the cost of brass becasue, well... I have 3-4000 pieces of it lying around. You should have some if you have purchased the more expensive loaded ammo from time to time and didn't throw it away.
As far as the title line goes...I don't shoot "cheap" ammo out of any of my firearms.