Don't be embarrased. A hundred bucks isn't that much for speakers with any appreciable bass, and these look like they might have some oomph. It is true that Ultralinear wasn't aimed at the purist or the high end listener, but many people are actually not that picky picky picky.
So you may like them a lot. I would suggest recapping them - it is unlikely that Ultralinear used film caps for ultimate sound quality or whatever, and electrolytics, which are cheap, age over time. You can simply replace the electrolytics, which may have drifted in values, and return the speaker to its original sound, or you can go for film caps and make the speaker brighter than intended, which may not be a good thing.