Incedentally, here's a formula I made for caulculating the worth of a unit's physical stats:
HP*((6+Prot)/6)*((Mor)/10)*((1+MR)/11)*(9/(6+Enc))*((3+Str)/13)*((2+Att)/12)*((1+Def)/11)*((3+Move)/5)*((40+AP)/50)
Go ahead and tell me how useful/worthless you think it is
A 'normal unit' with 10 hp, 10 att, 10 def, 10 str, 10 mor, 10 mr, 10, AP, 3 enc, 2 move, and 0 prot will come out as 10 gold. Also, I weighted defense more than attack and strength, and AP the least of all... I dunno, it works ok I guess.