I figure I'll just throw my two cents in as well. In my experience, bettas do not need a cycled tank to live. I've had many bettas live for 3 years in the small betta "tanks" with weekly water changes...that being said, I don't recommend it. Once I began to "upgrade" my bettas into larger and larger tanks I realized something, they love the space! My current betta, a small female named Rainbow, lives in a cycled 10 gallon tank with my two African Dwarf Frogs, she has got to be the most active betta I have ever seen and she seems very happy in her home.
Also, it's not a stupid question, hope this helps