IMO I didnt like the question mark feel of the old save point, I've always thought of it as a question mark, although its clearly just a bracket over a small crystal.
It always feels like I should be getting hints or pointers when I run into these, instead of saving, PHS'ing, etc.
I just hate the question mark, anything else is miles better, even just leave the crystal with no bracket, just please, why would you want to save at a ? ?