I have an Icom A6E, never needed the VOR bit. However I made the mistake of buying mine a few years back - the older units are not 8.33MHz compliant, the newer ones are so if you're buying one off of eBay, be aware that more likely than not, unless it's brand new, it won't support the new frequencies as and when they are introduced.....
PS: If you're just listening in, get a scanner. Ask yourself why you'd need a full R/T to begin with? I doubt you'll use it that often. I only use mine maybe three or four times a month - usually for requesting clearance to start up at some airfields or other who specifically request clearance to start up - oh, and to ensure my flight plan was closed last week ;-)
Last edited by Steve6443; 30th Jul 2013 at 13:14.