Is it worth it
Take it from us older guys... I'm 38 and may others are older and wiser than me.....
Don't even start in a hobby like cars if you are concerned even the least bit about the money it will take and being able to recoup what you have into it. It will drive you nuts and you will not end up with what you want...
Build a car that reflects what you want as you can afford to get what you want.... If you are never concerned with the return on the dollars spent then you will end up with a great car that you absolutely love and will keep and pass on to your kids some day... trust me, we've all spent 1000's on cars that we couldn't sell for the price of the parts... But we do it because we love the hobby and the cars.