I want a .38 Super myself. I had read ballistic data on them but everyone I knew who shoots said I would be wasting my time and money and to get a .45 only. Since then, .38 Super has enjoyed something of a rebirth at a time when many companies have stopped producing .38 Super pistols due to previous lack of interest. I guess it depends on where you live, but most Colt's I have seen are very overpriced, be they .45 or .38. On the otherhand, current Springers are grossly overpriced and nickel plated. Between the two, buy what you can first, if in good shape or new. Then buy the other maker's .38 Super when you can. Having more than one pistol in the same caliber, as you know, isn't a bad thing.
If you have the jack, go for one of Colt's obviously Latin-American-aimed .38 Super Special Editions in a polished nickel or stainless, with pearl or ivory grips. They're engraved in script with names like, "El Generalisimo", "El Jefe", etc. They may sound gaudy but, they're special editions so they'll always hold a higher premium than basic models. Just an idea. Or, if you have the patience, pick up a pre-war vintage 1911 in .38 Super.