My LBS has made the same recommendation when I asked about switching from flat-bars to drops with bar-cons and aero brakes.

I'm looking for more hand positions and a more comfortable long-distance ride.

I don't think the tri-bars are a good solution (for me) because it's a hilly route with turns and tons-o-traffic.

The drop-bar plan is more expensive, but I think the right course for me. YMMV.