It sounds to me like, for whatever reason, you feel that accepting the free LaScalas would obligate you to use them in perpetuity. Basically, you'd be selling your freedom to use the speakers of your choice for about a grand, because that's about what fifteen year old LaScalas go for.
This is less clear from your post, but it sounds like your friend gave the speakers to someone else and now wants them back. So in her mind, they may not be your speakers even after she's given them to you.
I know you were probably hoping for a comparison of the LaScalas vs the Lores, but I'd decline the gift on general principles regardless of what speakers are involved.
Duke