Costco Syndrome

Psychological syndrome where you buy things you've never used, will never use or never use the amount you purchased before it goes bad but are completely happy about it.

"Why are you doing a new room addition?" "It is for the new spice rack because the 4 pound curry and turmeric jars I bought while suffering from Costco Syndrome won't fit in my kitchen. If I ever start enjoying the taste of either of those spices it will be great, got them at a phenomenal price!"