big plants

My two tomato plants are huge.  Just plucked # 33 and # 34.  I counted 24 more tiny tomatoes slowly filling out.  I would have pruned these plants to produce more fruit, but I thought I would see how big they would get if left alone.  Have had very little bug problems with these.  They are both growing in one Earthbox and at this point they require 3 - 4 gallons of water per day.   89,94,65,0,B