Do you want a weekend cruiser, or a fast daily?
Do you want a dedicated track/strip/etc motorsport car? Or something thats fun on and off the road?
Are you chasing serious performance for pure fun, or are you looking to learn or improve mechanical knowledge and skill?
Then theres other little things like .. Can you afford to run a second car on the road (Rego, insurance, etc) if you intend to take it to the street. Can you afford to have the Bluey SSS off the road for whatever reason should things go wrong or get serious? Yada yada.
Think about the WHY and less about the WHAT, then make a decision.