From the excellent Cabin Pressure:
CAROLYN: So, the deal is that I pay you £362 now ...
HERC: Yes.
CAROLYN: ... plus you don’t pay any rent next time you land on any of my greens, my yellows – excluding Leicester Square – or Park Lane ... unless I’ve built a hotel on it, unless you mortgage something, unless it’s a station.
HERC: Unless it’s King’s Cross.
CAROLYN: Yes. Well, that seems straightforward enough. Deal.
DOUGLAS: I must say, Herc, Monopoly’s a very different game with you than it is with Arthur.
ARTHUR (indignantly): Hey!
DOUGLAS: Arthur’s strategy tends to be pretty ruthlessly focussed on getting Marylebone and Covent Garden because those are the ones he’s been to.
CAROLYN: He also once did a deal whereby he gave Martin Mayfair so long as he was also allowed to give him the Electric Company.
ARTHUR: Well, I kept having to times things by four. That’s not fun, that’s maths!
I'm with Arthur on those.