I'm not sure what event you saw, but there are a variety of recreational ski racing opportunities here in CO. I know the WP comp center has various programs from different ages and skiing styles. Alpine, moguls, nordic jumping, etc.
A number of years ago I participated in Teamski
ski racing. It is designed for team participation from ski clubs or businesses. From the website:
Racers from a company or ski club are organized into co-ed teams of 6 that race in a head-to-head dual slalom format. Racers get two runs down the course, with the best time counting for both individual (within age group) and team scores. The team time consists of the five fastest racers on a team, including at least two women.
They schedule races at different areas through the season. This was a fun way to be involved in ski racing and my wife and I did this before kids.
I have also raced on a team in a ski race league at Eldora, the nighthawks. This ran in the evening under the lights. This was pretty competitive with ex-CU racers and such. Even for a racing hack like myself, it was good fun.
I have another friend who is very involved in masters ski racing. From the sounds of it, this is pretty competitive. They do all the different events (downhill, super G, GS and slalom) at different areas through out the season. They run every weekend from Jan into April. These guys have all the different skis for each event, speed suits, etc. They are out to win.