You ask: "Might not a traditional multi-scroll be seen as more fitting for a work of great religious and literary import than a cheaper new-technology version?" That might have been possible, but that doesn't seem to have been the trend. Multi-scroll and single-scroll formats may have continued to be used side by side for many generations (e.g., in Torah scrolls this seems clear), but in general larger scrolls (on parchment) seem to have been considered more prestigious, while smaller scrolls tended to be more practical in nature.
Regarding Hellenistic dates, of course plausible scenarios could be proposed for the Hellenistic origins of many of these Psalms. But I don't really see anything in the Psalms that compels me to go that route, which seems to be in tension with the documented evidence. Israel has a long and complex history of cultural interaction with Egypt, so there are many possible points of contact. It's just a matter of relative plausibility, and pre-Hellenistic dates pretty easily explain most everything we see in the Psalter.
Thanks for the interaction.
You ask: "Might not a traditional multi-scroll be seen as more fitting for a work of great religious and literary import than a cheaper new-technology version?" That might have been possible, but that doesn't seem to have been the trend. Multi-scroll and single-scroll formats may have continued to be used side by side for many generations (e.g., in Torah scrolls this seems clear), but in general larger scrolls (on parchment) seem to have been considered more prestigious, while smaller scrolls tended to be more practical in nature.
Regarding Hellenistic dates, of course plausible scenarios could be proposed for the Hellenistic origins of many of these Psalms. But I don't really see anything in the Psalms that compels me to go that route, which seems to be in tension with the documented evidence. Israel has a long and complex history of cultural interaction with Egypt, so there are many possible points of contact. It's just a matter of relative plausibility, and pre-Hellenistic dates pretty easily explain most everything we see in the Psalter.