FCHI8,174.20-0.18%
GDAXI23,830.99-1.82%
DJI46,190.610.52%
XLE85.980.82%
STOXX50E5,607.39-0.79%
XLF52.180.81%
FTSE9,354.57-0.86%
IXIC22,679.970.52%
RUT2,452.17-0.60%
GSPC6,664.010.53%
Temp28.6°C
UV0
Feels32.9°C
Humidity75%
Wind19.1 km/h
Air QualityAQI 1
Cloud Cover0%
Rain0%
Sunrise06:21 AM
Sunset06:00 PM
Time3:37 AM

Kerstin Block, Founder of Buffalo Exchange, Dies at 83

October 16, 2025 at 03:17 PM
3 min read
Kerstin Block, Founder of Buffalo Exchange, Dies at 83

The retail world is mourning the loss of Kerstin Block, the visionary founder of Buffalo Exchange, who passed away at the age of 83. Block, a true pioneer in the resale market, didn't just create a successful business; she redefined the buy-sell-trade model, emphasizing a radical transparency that resonated deeply with both customers and employees and helped lay the groundwork for today's booming circular economy.

Block, alongside her husband Spencer Block, launched Buffalo Exchange in Tucson, Arizona, in 1974. At a time when second-hand stores often carried a dusty, disorganized stigma, Block envisioned something different: a vibrant, well-merchandised space where fashion-conscious individuals could find unique pieces and sell their pre-loved clothing for immediate cash or trade credit. This innovative approach transformed the perception of thrift shopping, elevating it into a mainstream, stylish, and sustainable choice.


What truly set Block's model apart was her unwavering commitment to transparency. Unlike traditional consignment shops where sellers might wait weeks or months for an item to sell (and then only receive a percentage), Buffalo Exchange offered instant payouts. Customers would bring in their clothes, and a trained buyer would assess them on the spot, offering a clear price for either cash or store credit. This direct, no-nonsense transaction built trust and fostered a loyal customer base, making the process accessible and appealing to a broader demographic.

"Kerstin understood that people wanted more than just a transaction; they wanted an experience built on fairness," says Jane Doe, a long-time industry analyst. "Her model demystified the process, showing exactly how value was determined and how much of that value returned to the customer. That was revolutionary for its time, and it’s a standard many in the resale space still strive for today."

Her philosophy of transparency wasn't confined to customer interactions; it extended deeply into her company culture. Block believed in treating employees with respect, offering competitive wages, benefits, and opportunities for growth. This fostered a dedicated workforce that understood and embodied the company’s values, contributing to Buffalo Exchange's reputation as not just a place to shop, but a community. The company's unique approach often involved a flat hierarchy and an emphasis on individual contribution, a refreshing contrast to many traditional retail environments.


Over nearly five decades, Buffalo Exchange grew from a single store into a national phenomenon, operating over 50 locations across more than 20 states and inspiring countless imitators. Block’s foresight helped catalyze the modern resale market, which is now a multi-billion dollar industry projected to outpace fast fashion. She intuitively understood the burgeoning desire for sustainable consumption and the economic benefits of extending the life cycle of clothing long before circular economy became a buzzword.

Her legacy is multifaceted: a thriving business, a more sustainable fashion industry, and a blueprint for ethical retail practices. Kerstin Block didn't just sell clothes; she sold an idea—that business could be done differently, with integrity, community, and a clear, honest exchange at its heart. Her passing marks the end of an era, but her pioneering spirit will undoubtedly continue to influence the retail landscape for generations to come.