Eric,
Do you feel the performance difference between the AC87U & the AC88U is enough to make upgrading worthwhile? I have finally got my AC87R up and running with a stable configuration and do not wish to go through that experience again.
Thanks for any insight that you see fit to provide!
Hard to tell without knowing the final retail price. Chances are it will cost as much, if not more as the RT-AC87U I suspect. In that case, I doubt it's worth paying that much just for the performance improvement over a one year old 250$ router, unless you badly need the faster CPU for either VPN performance or because you need to run your router with NAT acceleration disabled.
For someone who bought his last router 2+ years ago, it might be easier to justify the expense.