Honestly, I think there are a ton of "game assumptions" that are muddying the issue. For example, in most of the games I play in the DM/PC treasure convention is that magical shops are not as prevalent as wal-mart, but magical items out of the DMG are not that hard to purchase provided you've got the funds. That makes party treasure dividing less significant. That's a game style difference, not a problem with the soulknife class.
Also, there are many differing opinions about balance. I don't feel like all classes need to be perfectly balanced in every way. Fighters are the best melee people out there, hands down. Looking at the narrow aspect of melee combat there is no class that competes with the versatility of the fighter class. But I'm also okay with that. For me, playing a character that needs to make sure they boost their DEX (if they don't want to dip into their STR and CON) is acceptable so long as the flavor and other mechanics are cool. In my eyes, that's also true. Sure, a soulknife has to make sure their DEX is higher than a fighter's DEX. Okay ... there is no arguing that. But I'm okay with that. No big deal.
Moonstone Spider said:
A soulknife's extra free dex points you insist he's going to gain for free will not give him spells or grant the soulknife healing or let him fly or anything of the sort.
...
You've shown this by insisting on more Dex at every turn to bolster your own argument
I never said that the DEX enhancements come for free. I've also never changed my position at all in regard to the DEX boost needed! What I have said is this:
NLF said:
But with all the magical boosting items and their relatively inexpensive cost with regard to benefits a character should be able to arrive at the max DEX allowed by any give armor. The max DEX of a chain shirt is only +4. All a character needs for that is a DEX of 14 and a magical item that boosts DEX by +4. That shouldn't stretch the imagination any or break anyone's bank. It shouldn't also cut into CON or STR too harshly.
I fully admit that throughout my whole posting in this thread I have assumed a Soulknife with DEX 14 and a Gloves of Dexterity +4 to get the full armor bonus. I've also been assuming magical enhancement of +5. If you're going to be able to afford armor enhancement of +5 you should be able to afford 16,000 for a gloves of dexterity +4. I don't see anything wrong with that assertion.
If you want to look at lower levels, though, of course it isn't going to be perfectly balanced. But here is a rough comparison:
At 4th level, the Mindblade gets a free +1 weapon enhancement worth 2,000 gold. Not enough to buy any DEX boost yet. So the Soulknife with DEX 14 is behind the full plate fighter's unenhanced armor bonus by 3. But that's assuming they've spent a large portion of their money on costly full plate. Many may have, but many may still be using breastplate, too. I've seen more than one fighter stay in breastplate past level 4. It may not be optimized, but the characters are not wealthy yet, either!
At 6th level the Soulknife gets an enhancement to their weapon. Technically, this makes the wepon a +2 weapon, worth 8,000 gold. That's enough to buiy a gloves of DEX +2 and have 4,000 in change left over. So their unenhanced armor comparison is now behind by 2, assuming the fighter has gone to full plate which by this point they may well have.
At 8th level the Soulknife gets their +2 mindblade. However, this is actually a +3 mindblade worth 18,000 gold because of the enhancement gained at level 6. That's more than enough to buy those gloves of DEX +2. At this point, their AC should only be 1 point behind the fighter in full plate.
I think that's a fair comparison, personally. By 8th level and a starting DEX of 14 the Soulknife need not raise their DEX again and only be 1 point behind the fighter in full plate AC without spending any extra money that the fighter wouldn't spend on a weapon in the first place.
Is it perfectly balanced? No. But it is close enough for me! After all, the fighter is the quintessential melee expert. I'd expect it to be better and have a slight advantage. Not a huge one, but the Soulknife/fighter comparison as I've laid out is not a huge difference in my opinion.