Not at all, We all want to make sure our kids have a wonderful Christmas. I see you have a little one as well she wouldn't know the difference from new to old. I don't see anything wrong in doing that .
We're doing that this year, my daughter is 2 though so she doesn't know the difference
Oh heck yes!! We’ve done that especially with larger toys like ride on or yard toys. We’re moving and I plan on hitting up fb marketplace for stuff we had to leave behind.