Which do you prefer?
I like the Market Place for quick selling and buying, plus you can undercut the offers easily enough if they're not already at their lowest! I don't like how you can't do bulk selling over it though, I think it would be nice to have sort of listings from sellers like 50 x Corner Plinths - price 40 Credits or something.
I like Habbo shops for the actual bulks you can buy in them, and if they're in bulks you can sometimes get a discount whereas if you buy bulk on the Market Place you don't know what the next offer is or whether it will be higher than the previous.
I like both for gaining quick deals sometimes you just get lucky, I remember someone putting 3 Throne Sofas in for 6c and I managed to get 2 of them, it's good when you're looking at the right thing at the right time.
What about you?