We had our second-best Dynamis Tavnazia (currency-wise) on Saturday. 154 bynes, 160 shells, 62 coins (376 total in 2 hours, 188 per hour). On 12/29/11, we had a Jeuno run which yielded 98 bynes, 339 shells, 347 coins and the clencher is that was a full clear with an hour remaining on the glass, so it took us only 2.5 hours. (784 total in 2.5 hours, 313.6 per hour). On 9/11/10, we had a full clear Sandy run with 727 coins and 30 minutes remaining on the glass. On 12/15/09 we had a Bastok full clear with 794 coins and I didn't write down how much time remaining on the glass.
I could go on, but what this boils down to is we average about 100-150 coins if no hundos drop on a CoP run. We average about 350-400 coins if no hundos drop in a city. 350(the low end of cities) / 3.5 hours = 100 coins per hour, *2 hours = 200 coins, which is 50 more coins than the high end of CoP runs. Even if we spent the whole 3.5 hours in the city, even if we could spend 3.5 hours in CoP runs, the cities are still a more efficient source of coins per hour, and DEFINATELY a better source of coins per gil.
A fresh change of pace I'm ok with. Abyssea was kinda cool. But abyssea didn't destroy Dynamis when it came out. And yes, I'm still having fun, still learning. If I didn't have reasons to be doing Dynamis, I wouldn't be. These changes cause sponsorships to take longer however. Either we stick to 4 CoP runs, ignoring the other 6 zones and getting less currency, or we go to the 6 new zones and... get less currency because they're lowering the drop rate of coins. I scoff at the idea of that being win win.New dyna should be win win for you. Unless you're really still having tons of fun with the predetermined dynamis setups after several years, this should be both a fresh change of pace AND beneficial for you and your goals.