Absolutely.
There's enough demand for all, and happily, enough sources of supply that customers won't worry about collusion.
I know of yourself, myself, blocktrades, MSP and berniesanders.
I'm sure there are a few more I'm not aware of too.
We all have finite steempower to lend, as well as different pricing and timing structures.
It's interesting to note a lack of arbitrage possibilities since VP can only be delegated directly by it's owner.
I was the cheapest when I put my hand up, but the price has certainly come down recently.
My focus is on simplicity (calendar months instead of 28 days), and certainty.
(A customer with 1200 steem saved up knows he can be sure of 10K x 6 months)
Ultimately a vibrant delegation market is great for steem, which is great for everyone :)