As long as were still on this...in 1977 for example, PY10 were available in red, white, blue, black, silver and bronze. To expand on what stronglight said, who wants a bronze Peugeot? Like anything else fans what their heros ride, drive or wear.
Ferrari fans want a red Ferrari not blue
Jordan fans want Red Black and White Air's
Peugeot fans from the late 70's want silver Peugeots...
1984 Schwinn Paramount; 1987 Schwinn Paramount; 1975 Tom Ritchey, 198X Vitus