Fair enough. I feel bitstamp is the only genuine orderbook anyway, as most of us feel here I'm sure.
I know coinbase isn't well liked around here but I'm more not including them mostly because you can choose to get enough data about the order book to fill up your HD quickly or hardly any at all. Finex seems to be less unpopular here than I feel about them but I think one is enough for now anyway.
Problem with coinbase here is not the exchange itself, but more the person running it, nobody here wants to support if for that reason. I also don't think anyone here views bitfinex with high regard honestly.
For me, I would trust coinbase's orderbook over bitfinex. I think many would. But, keeping it on bitstamp make sense for stated reasons.