What response could Andy provide that would have you buy them? Is it just an opportunty to engage with him directly that you are seeking or are you really entertaining the possibility that he might provide an 'explanation' that would be entirely acceptable to you? You have said they are too dear, so whatever Andy says, they will remain, presumably, 'too dear'. If it is a matter of principle to you, whatever magic Andy may weave, he cannot be expected to alter your principles in a single post. I have read your posts, and I think you know your own mind and have settled on a firmly held opinion, which is your right. You may just to have to accept the end result of that opinion, which in this case, means no MG. Every time I go into my TS shop (once a week) it is an exercise in accepting that I cannot have everything I want.
I suspect that any engagement you have with Andy would be like me apologising to my mother-in-law - sure, she wants to hear it, but it is not going to make a difference regardless of what is said. It is just an opportunity to create further ill feeling. The product has a price. Too dear, don't buy. Dear, but worth it, buy.
For the record, I think your Dad's comment is as good as anything that has been written in these Arnhem threads.