I knew without opening the link that it's about Rochester MN. I have a love/hate relationship with AS/400 and I think they're interesting in their own unique way. Systems like SUN/SPARC, Power, 68k etc all have become parts of history, but AS/400 (iSeries) and s360 (Mainframes) keep chugging on.

I recently visited Poco in Berlin and was pleasantly surprised to see them using AS/400 terminals. I also know it is used in several finance companies like Societe General.