I've seen a few threads here and there saying that one thing to do as soon as possible is start doing a full boil (5 gallons in the boil instead of ~3 in the boil with ~2 of water added later). For reference, I'm considering this in the context of extract brewing.
So, I'm curious- what's your opinion? If you went to full boils, was it a significant improvement? Was it worth the cost of a bigger pot and heating method?