Really…neither is better. It really depends on why you’re collecting and in what state you’re able to enjoy a piece.
I have several windstones that I purchased chipped or scuffed, that I have no intent of replacing or repairing. I’m ok with them the way they are. This is mostly the case with very old windstones.
However, there are certain sculpts that a chip (especially on the show side) would nag the daylights out of me…and in that case I hold out for what I want in mint condition. It’s just more cost efficient that way.
My opinion is that you should save up for what you want, dont ‘settle’ for less just so you can replace it later.
However, if you’re ok with a chip or two, just so you can enjoy the overall look of a piece, go ahead and nab a cheaper one. Chipped dragons need love too.