Good choice, and yes I also believe it will be an excellent coin to be in.

The ideas are new and innovative.
I mean, arent you tired of the same old crap over and over again? Marketplace, anonymous transactions, and etc..

The betting nodes are real cool and innovative and the main reason I got into Graphcoin.
Unfortunally it has been pushed back because of Bittrex's policy. (The coin needed to be more then just gambling).

But the arbitrage bot is a real cool sidefeature and I don't believe anyone has experienced with this before.
It will create an actual value to Graphcoins, as the coins you hold will produce wealth by itself no matter what the Graphcoin market says.