i am gonna go with nolofinwe,
"MAYBE"
first the stand, the all glass is it wood or laminate??
they do make plastic (for smaller tanks), metal, wood laminates and REAL wood(pine stained or real hard wood is also available), that alone could be a considerable difference, look at the particular tank stand that he is trying to sell you
2d the oceanic, what lighting comes with it?
the all glass may be drilled after market for the overflow, definitely good, but not quite the same as having it factory installed(differtent set ups and also differencees in warranty, b/c drilling glass is not reccomended, i would do it but manufacturers wil void warranty if it is done since it is risky)
also does the price he gave you include anything else different(ie. sump or whatnot) and the lighting alone coould be worth hundreds $$
sorry but just saying yes or no is not easy when there are these variables which could seriously make a difference in my decision, even thought they are owned by the same people. means nothing, when you look at it, for example: the same people who own pontiac also own cadilac, they too do have their differences
i would use either personally but the differences in price generally can be justified to an extent, the real question is HOW IMPORTANT ARE THESE FEATURES TO YOU? some do not care about a real wood stand and sme may not want those lights, b/c they intended to get different lighting and so on