I wouldn't do it, imo they're pretty boring live.
The last time I saw (a bit of) Yo La Tengo was at the My Bloody Valentine ATP in December and they made such an overwhelming impression that I can barely remember any of it only a month later.... no, not because I was drunk.
BUT, I noticed Cheveu are playing in Israel next month. They'll be much cheaper for sure and they are a lot of fun live.
http://www.myspace.com/cheveu