I wouldn't buy a corded mouse just so you get to use your bungee. Besides, the 703 has the option to be used both wired AND wireless. I usually keep it plugged in for browsing the internet etc., so it stays charged, and only unplug when gaming.
I have the 703, I'm not sure what you mean by good, but yea I like it. Feels better than the one on the EC2-A, and I've noticed fewer accidental mouse jumps and easier bhopping.