Shhh, growing is addictive. More space, more plants.
I know :-( But I have to have a budget, too.
Going with the 3.3x3.3 means I don't need a new light. I can move my P2000 over to the new tent, and put my P1500 in the 3x3 I have now. I'll use the 3x3 with the 1500 for veg, and the 3.3x3.3 with the 2000 for flower.