If the system had been available 500 years earlier, Jiang Li would have frequented its store often, as the items within it greatly benefit cultivation.
However, the system was delayed by 500 years, which meant that whatever the store had, Jiang Li already possessed. Even things the store didn't carry, such as the cultivation insights of the most powerful Human Emperor, Jiang Li had.
That said, the system's store did have its uses from time to time, such as sparing Jiang Li the trouble of traveling to other worlds directly and online shopping for refined Immortal Artifacts instead.
Or, for instance, buying a Stele left behind by the Ancestor of Dao from the store.
When buying the Dao Ancestor's Stele, Jiang Li only gave the store interface a cursory glance, not paying it much mind.
Upon opening the store interface again, he indeed discovered some new items.
[Skyflight Brand Holographic Simulator]