The Pokemon 151 Ultra Premium Collection is currently on sale for $90 at Walmart.com. Just type in Pokemon 151 in the Walmart search bar.
At $90 you’re paying $5.62 per booster pack in the Ultra Premium Collection… compared to $4.83 per booster pack in the Booster Bundles. It’s still a deal over paying $120 for a UPC but it isn’t your lowest price per booster pack even on sale.
It’s interesting to see that there’s still supply of 151 product out there!