I think the last few posts have been going off on a tangent. In general, I do think there's value in dissecting a cadaver. Is there a lot of "wasted" time? Sure. However, I do think there's something to the idea that dissecting structures out will lead to a more intuitive understanding of the relationships between structures than what could be gleamed from pictures or an anatomic atlas. If there wasn't, then everyone would simply memorize Netter's and ace anatomy exams. For me, at least, no memorization of Netter's would've allowed me to do well on anatomy exams; for myself, I needed to see things in the flesh.
I suppose the real question becomes whether you will remember these things when you encounter them ~2-3 years down the line. At a minimum, I would think that those things would at least be remembered more easily rather than having to relearn them from scratch.