If you change the point of view and instead thinking in a unit you consider the overall force of skirmishers inside a 4 unit brigade, you could conclude:
It is more or less like a unit with the following
points 75.
Stat: 4 attacks / 3 hits / save 0/6+ / sieze:3 stands
Special:
- Not have -1 command when a stand is destroy
- could be the fifth unit of a brigade.
- Do not have own movement,
Above is a simplification because SKIRMISHERS STANDS NEVER COUNT AS INDEPENDENT UNITS UNDER ANY CIRCUMSTANCES, but could sum up the potential of skirmishers.
75 points unit of 4 attacks and 6+ that could make be the 5th unit brigade... yes I think it is worth.
or even a 100 points unit of 4 stands, 4 attacks that could make 5th unit brigade. Yes.