You might find the discussion at the following link interesting:http://www.camaros.org/forum/index.php?topic=1492.0
As for myself, I will admit that I am biased to keeping these cars original along with the fact that my ride is a '69 RS Coupe, 327/210 base engine, Powerglide, 2.73:1 open differential. From a performance perspective, nothing special, but like your car, well optioned including Z22 Rally Sport, Z87 Custom Interior, N40 Power Steering, N44 Special Ratio Steering, N34 Rosewood Steering Wheel, N33 Tilt column, U16/U17 gages, D55 console, D80 spoilers, J50 power assist brakes, N10 dual exhaust, etc.
Although not a ground pounder I like my ride the way it is because.... a RS is not simply the base car with hideaway headlights and a couple of badges.
The differences between a RS and the standard body included (in 1969):
different outer fenders, different inner fenders, different grille, hideaway headlights (based on vacuum actuated, articulating, headlight mounting bracket to rotate the headlight covers in and back in the open position), inner and outer headlight door covers, vacuum cannisters, mounting brackets for the vacuum cannisters, vacuum reservoir, relay valve and the associated vacuum lines, different headlight switch with vacuum hose connections, different windshield wiper switch (2 dentent positions, first detent routes water to the windshield washer nozzles, second detent routes water to the headlight washer nozzles which spray water on the headlights), headlight washer nozzles, diverter valve on the windshield washer pump, water tubing from the diverter valve to the headlight washers, and even a difference in the front header panel to accomodate the headlight washers themselves --- even down to the miniscule items like the bracket that holds the windshield washer bottle - it is in a different location on a RS. And this doesn't include the Style Trim RPO Z21 items that are a part of RPO Z22, the RS package.
It is very true that a base V8 RS Camaro is not valued as highly as a Z28 or other high performance variants. However, a nice 69 RS has reasonable value and they are not that easy to find. You seem to see SS/RS and Z28/RS cars (or clones based off of original RS cars) all the time. Don't see too many RS cars in Hemmings or other sources thiese days. Hope you keep it as the General built it.