Yes, attracting newbies and vinyl fiends to visit local independent stores is certainly worthy. Obtaining limited-editions (usually 1,000 to 3,000) of alternate, never-released tracks or straight reissues (Albert King - 'Born Under A Bad Sign') makes for happy consumers. I'd expect half of purchased items to remain sealed and stored away for investment or merely gazed-upon like those who collect commemorative plates.
The purchases which are opened and played may well reveal the flaws of hasty, overstressed pressing facilities*. Off-centered, warped, scratched, or horrible sounding vinyl has been reported by many customers on the Hoffman site. Most RSD stores are unable to replace defective items and may be reluctant to refund cash. Record Store Day is not necessarily a completely happy one for all concerned.
*United Record Pressing in Nashville is an often-mentioned culprit