We (a small cafe in Northern California) are looking to buy a blast chiller and would welcome any recommendations or information about them. One of the models we are looking about is a Traulsen RBC50....which lists for about $15,000 new. There are many of them on Ebay for sale at around $3000....like 10. I find this disconcerting...that there are so man y of a particular brand/model for sale. So, does anyone know anything about this model blast chiller and have pertinent info to offer? And, we are also open to hearing about your experiences with blast chillers. Thank you for offering any information......