If you decide to go with ESP or FLX and realize the power and magic of a buzz, then I would add a 10 year buzz. It is a slightly different mold, but does everything a buzz can do and then some with it's additional stability. The plastic ( in Z ) feels and looks better than their normal stock of Z plastic (mine has some nice pearly swirls, and the plastic feels softer, yet just as durable as regular Z). It would pair nicely IMO with a slightly beat FLX buzzz.
The 10 yr Buzzz is definitely not just hype or DC trying to cash in on an anniversary, it's a great disc.