It would be nice that any device that has the ability to have multiple LAN ports could also have LACP. This is a great feature for fault tolerance.
Hello,
Thank you for the feature request, we are already discussing this internally as a possible new feature for some of our Balance series of routers (excluding the B2500 as it already has the feature).
Will be sure to update if there are new developments 
+1 for the Balance 30! We have connections to both the top and bottom of our core switch stack, which our switch recognizes for redundancy purposes, but we would LOVE to have the aggregated throughput from LACP support!