If you need a 8 bit MCU with performances, rich peripherals, data EEPROM and aggressive price the solution is STM8 family.
STM8S value line and STM8L value line are extremely aggressive in term of price ad a low count pin.
STM8S001j3 (8 pin) start from 0,2$ for 10Kpcs
STM8L050j3 (8 pin ultra low power) start from 0,25$ for 10Kpcs
For more info see here.