MERLE'S CARD SHOPS, INC. is a specialty store in Castro Valley. Operator refreshes the health score, market rank, and review feed every night.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how MERLE'S CARD SHOPS, INC. broke down on May 3, 2026.
Operator ranks every specialty store in Castro Valley every night at 2 am HST using reviews, response rate, and local market share.
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