I read a question about Sentrias in the latest VCCC newsmagazine.The Sentria DOES NOT have the Kirby "bank".The "diamond G" model did-the last one to have the bank.The latest Kirby salesfolks DID not know what the Kirby bank was-explained it to them-and no mention of it in latest Kirby sales materials.With Kirbys latest plastic fans-the Kirby bank is needed more than ever!However the "bank" doesn't help if you pick up a coin hidden the couch.They should put a trap AHEAD of the fan(like the NSS M1)so the coins won't break the fan.what good is the "mini-emptor" if the coin passes thru the fan and breaks it-you can find the coin and the peices of fan in the emptor.