Whoa, didn't expect it to be that! Here goes...

I may well be just what you need
I'd love to bring you up to speed
Curiosity's killing the cat you say?
Then kindly turn the other way!
The price is high no matter what
But come and get it while it's hot
Else hold on until you are nine;
Fortitude equally divine
Shan't blame you if you wish to wait
But look, eighteen plus fifty-eight?
When time's a factor you will see
You will come running back for me