Video Monitor Recs

We've had a Summer Video Infant monitor since my son was an infant. (He's now almost 4.)
Unfortunately it is suddenly failing to work, and Summer no longer makes it. Of course the "new and improved" version of it is upwards of $300.

So, any of you have a video monitor that works well for you... especially one that is not $300?

I'm suprised your summer one still works.. Ours quite working after 10 months, lol. Thankfully we got a new one because it was under warranty. Anyway, I don't have any suggestions for you, sorry!