i will keep my iPad 3 with iOS 5.1.1 and jailbreak, with the 30-pin dock
i like google maps, i like the ipad youtube app, i like the jailbreak with BTC Mouse, i like $0.99 cables, the list goes on. my iPad (exchanged 2 before i got a perfect one) has a perfect screen, doesn't overheat, and actually doesn't seem to take that much longer to charge. i guess i wouldn't notice. i use it so much throughout the day that i just plug it in before i go to sleep and wake up and it's at 100% and ready to go.
i think the A5X sucks (my iPad 2 was actually snappier), but let's face it...there will be no benefit from the Lightening port for at least another year. by that time, the iPad 5 will be out and i will just buy that which will have an A7X or something.
as far as resale value is concerned...while i will be taking a hit because i don't have the A6X, i can see the 30-pin connector carrying a hidden value to potential buyers due to a decade long accumulation of 30-pin accessories and cables.
i was all gung-ho in several threads about this topic of the iPad 3 vs the 4th Gen iPad just announced...but having thought about it for a bit i think i will keep what i have despite being within the unofficial 30 day return period