If you're going bushido paladin, then -15 physical isn't maybe so bad, since that's easier to overcome than the -25 fire for Sampires... Plus, with the proliferation of 100+ resist pieces from Shame loot / reforging only increasing.
I'm also of the opinion that more and more specificly made suits will be around as time marches on. For instance, if you're not going to run into any non-magery casters, I don't see any reason to care too much about cold resist, since not too many things have a melee attack that deals primarily cold damage. And, the value of round numbers is, IMO, a bit over rated for resist values - not like, say, tactics where 100 vs 99.9 is a big difference.