Let's not sidetrack a productive thread please. We can debate the merits of weekend warriors in another thread.
I think the perception of "weekend warriors" has very much to do with the topic at hand. Let me explain...
It has come up quite a bit in this thread, so I'll elaborate on it. There are a large group of "weekend" musicians that do play just for fun, drinks, a night out, what have you, and getting paid
anything is just a bonus.
Some of them may very well treat it like a hobby, to the point that their level of professionalism may be reflected in their lack of work ethic...towards learning their instrument, learning material, promotion, performance, etc. to where they can easily lowball more serious musicians in the club scene because they simply do not care as much as others.
This has the ripple effect of watering down the entertainment pool. They can get hired cheaply by club owners, playing cheesy, classic, overdone standards to play for the lowest common denominator. Now compare that to the more professional approach of a musician who does take what they do very seriously and spends a lot of time continually striving to better themselves as musicians, picking out better (and maybe even more popular, current material) doing more work on stage setups/props, lighting, gear, promotion and the performance.
This has an effect on the market.
A couple of years ago, I joined a band briefly when I just needed gigs for the money, and the guitarists and drummer showed up to rehearsals each with a 12 pack of beer under their arms, never practiced their instrument at home, and rehearsals were just a big partying waste of time. The gigs sucked in the most embarrasing way you can imagine. Yet they got gigs, primarily because they practically did it for free.
OK, so how does a professionally run band (even if it is just made up of "weekend warriors") compete with that?
The perception that weekend warriors has some kind of negative connotation does nothing to promote the music scene and further our cause of making it more viable in a given market. But...that perception exists, so perhaps we need to ensure that even if we do it part time, we act professionally at all times to seperate us from the chaff, so to speak.