I spoke to my bank about this, the co-op. They said that if cheques do get phazed out it will take a very long time. Most of my income is in the form of cheques. I have toyed with the idea of internet banking but I don't want to give out account numbers etc to custies. Paypal is another option but it takes a cut of every payment you receive so I dont fancy that either.
I wont start collecting, never done it and never will so I think when i get my new web-site up and running I will ad a payment option on there. Until then its just a case of carrying on with the cheques. Like you said, not all custies are the type to do internet banking.
Its funny, if you say you would prefer cash over a cheque people automatically think you are trying to fiddle the books.