I am down 74 pounds from my highest weight...I have some loose skin, but it's not real visible right now to anyone but me.
Whether your skin is elastic enough to avoid the limp balloon thing is a matter of genetics. I am cursed.
After 2 pregnancies, I have stretchmarks that almost meet in the center of my tummy. One more kid and they probably will! But
I don't scar too badly; 8 months after younger girl was born my c-section scar is visible only as a slightly raise and slightly whiter line. So I'm not worried about the scars from when I (hopefully) get the loose skin taken off.