Some of it is not greed, but trickle down trussonomics.

Many landlords have found themselves with a massive increase of mortgage payments since last year when the but-to-let interest rates jumped from 1-2% to 5-6% and beyond. Many of those mortgages are still on the lower rate, but will have to move to a higher rate in the next 3-4 years. Brace, brace.

We could send them tiny violins and tell them to suck it up as investments can go down as well as up, but the reality is what we see in the article above. Hand on heart, how many of us would pay through our noses if we could get someone else to do it for us?