I really liked having a map display in the machine, but I ran without it a lot more then with it. 

I seldom spray 'extra' passes of endrows, and I've never had a problem judging the distance with only one pass of endrows.  At least not a big enough problem that I worried about it.  

A good foam marker will cost as much as an EZBoom.  The EZBoom solves the problem of knowiing when to turn the boom off.....you don't have to.