FrankTrollman said:So?
Who said anything about getting an amulet of natural armor? In fact, the amulet of natural armor in 3.5 is an enhancement bonus and applies equally to the Half Dragon as it does to anyone else.
How about anyone who doesn't feel like playing a Cinderella whose special powers last minutes at a time or are at risk of going bye-bye the moment Dispel Magic gets thrown around?
Or someone who'd like the party casters to be able to use Dispel Magic on him to remove the effects of enemy spells without a 50/50 risk of losing your most important combat buff?
Or someone without access to 8th level arcane spells or a caster that's going to use an 8th level spell on you at your beck and call?
Or someone who doesn't have the money or the inclination to cart around two different sets of equipment, if the alternate form is a different size?
Or someone who understands how Polymorph spells work, and understands that someone turned into a troll with Polymorph Any Object gets the stats of an average troll, not the stat bonuses of a Troll? (Hey, 6 Intelligence!)