An interactive BOM is great for stuff requiring specialty parts. I've appreciated those from Madbean, C2CE, and some of the stacked PPCB stuff requiring low profile parts. Unfortunately doing that requires ongoing maintenance from the author to keep the links valid.
Even just having a separate summarized BOM/ parts ordering list is something I really appreciate. Having to go through and count up how many 1n caps and 100k resistors are in a project is a bummer.