You could always appeal to someone's greedy side.

You accepted it the way it is, and you are still okay with living there indefinitely, you're just mad that the landlord is greedy.  

An increase that fast, possibly mid term of least makes it seem you're trying to get a 'greedy' title added to your name.

I am very comfortable with what I am asking, so I don't really see the need to get greedy.

You evil greedy landlord!! 

Tenants assume that the landlord is a greedy *** and will try anything to get possession. 

I would not get too greedy right away.

I think the bit about tenant paying for advertising and redecorating expenses alludes to an ETF, but in my opinion a judge would see this as an attempt on the landlord's part to be greedy and collect rent twice, and would rule on the side of the vacated tenant.

For some reason, there is a belief that the housing market is broken and the greedy LL is to blame.  

If they had greedy landlord and refused to return the deposit without clear reasons, they do not want to be take advantage by landlord and to protect themselves.