I think that the downtown needs a variety of places to live. Thats coming from someone who is completely against the negative side of gentrification.
Don't get me wrong, I love that someone is restoring this building. Most assuredly a positive thing. I have often looked at the structure myself with an eye seeing what it could be.
But saving this building by gutting it, slapping a wrap-around porch onto it, branding it as luxury and selling some yuppies the fantasy that they live on Charleston's Rainbow Row or in Downtown Savannah is not the answer to our woes.
If there is a stock of still habitable buildings then yes, cheap loft style apartments could be offered. Unfortunately, I don't think there is much of that. Most empty DT buildings will probably require a considerate investment to bring them back to habitable standard if you want to keep the existing structure.
Problem is that if you then offer low rent apartments you will never recoup your initial investment.
At least the Elena Flats were sold for what I find to be a realistic price - once the building is past a certain state, that should be the land value minus the demolition and disposal costs unless the building has some very special features and / or is a landmark. Otherwise, restoring the existing structure would be considerably more expensive than building new.
Looking at some other structures in DT, I find the asking price to be too high already - look at e.g. the Jones Bros Furniture Building on 520 Hogan St. I think it's totally cool and would make for great retail + apartments but @ $900k it just seems to pricey as it will probably need a lot of work and $$$ to bring it back.