I'm pretty sure you could retire with 10 bitcoins 
10K USD is realistic in 10 years
10x10=100K USD
Not enough, but prices that we are not able to logically imagine (it was NOT logical to think 1K per BTC would ever happen back then) CAN happen, so you could retire.
If bitcoin is still alive in 10 years, then it could be more than $10k in 10 years.