I'm trying to grow my iph on my mini, at the moment it's up to 37k hourly. I have 3.5m saved in cash, and could do my loft upgrade to level 4, or I could buy a big top. I don't have any of the ltb's on my mini, this is the first one I could afford, but I would probably only barely be able to level up to 2 before the end of the event.
Should I stick with the lofts so I can get the NC's? Or get the ltb?