[citation][nom]Pherule[/nom]This somewhat defeats the whole point of the "entire area being farmable". Guess it'll be back to doing runs in only the final act once players are strong enough. I'm disappointed, because I thought Blizzard wanted to avoid that.[/citation]
I understand what you're saying but if you think aobut how they're doing it, it's actually still MUCH better then D2's scheme. In D2 we basically sat in small chunks of area clearing to 2-3 big name bosses which DID get brutally boring. It was either that or risk your cow level creation capability by hoping no one would kill the king after everyone farmed the level for loot/XP.
With D3, you have the entire game on Inferno that you can farm. Granted, A1 will yield slightly less better loot then A2+, but given that you DO need to farm to tackle the later portions, you can easily blow through all of A1 per session instead of having to just take a WP to Worldstone Keep and be like 'Oo - Baal" - now, it'll be all about combating those far more nasty packs of random-modded boss monsters, which, IMO - was the true fun of Diablo's combat.
It's a win-win overall, though it may still need some tweaks once we get our hands on it