UK Games - New Little King's Story (PlayStation Vita - Region Free) $20 shipped, Breath of Fire 3 $9.40 Persona 3 Portable $18.58

This did not have a retail release in the US.
 
£13.08 + £1.49 = ~$19.36
http://www.base.com/buy/product/new-little-kings-story-playstation-vita/dgc-nlkpsv.htm

Some other stuff:

Breath of Fire III Essentials (PSP - Region Free) £5.58 + £1.49 = ~$9.40
 
http://www.base.com/buy/product/breath-of-fire-iii-essentials-psp/dgc-cp10078.htm
 
Persona 3 Portable (PSP - Region Free) £12.49 + £1.49 = ~$18.58
 
http://www.base.com/buy/product/shin-megami-tensei-persona-3-portable-standard-version/dgc-phmerpgho01366.htm
 

I have bought games from this site (and the one it replaced) many times.