I am looking at picking up one of two Delta Elites (not both). One is older, nicely blued and looks well cared for [doesn't seem to be fired much], but no box or papers. The other is a recent stainless with box and papers...very sound. Are there any big reasons to get one over the other? The blue is very nice, polished blue, relatively tight, nice gun. The stainless is newer, but the brushed finish is not as nice. Other than that, seem to be pretty equal...even the prices are not too far apart.