I have the smaller Bogen for tight situations
but rarely need to use it over the larger one (3079)
besides we seem to clamp several pairs of mics to 1 stand
and I wouldn't want to trust the smaller Bogen to all that weight
again, it really depends on what/where you are going to record. if it is small venue's where blending in is necessary, then even in some instances, the 3373 is too large. but if you are going to be doing large touring acts (WSP etc.), then a larger stand might be necessary. chances are, you will be able to find some clamp space at one of those shows.
that said, eventually i will pick up a larger stand for the large touring acts where i am the only taper (or the only one w/ a stand) and have to get high, err.. .up high and get my friends up high
ask yourself where you will be using it, there is no one stand that will cover all situations IMO.