Spent the first half in Block 21 and thought the same, but then spent the second half in North Stand Block 32 and To be fair the stand I had just been in looked at lot emptier too, from that perspective.
I've moved from North stand to block 16 mainly because you couldn't sit in the North stand when i got my ticket. I did enjoy the atmosphere in block 16, but if people want to sit in the north stand they should have a choice