Ahh, yes, I am sorry. I was fearing violating the "no talking about sales" bit. Here is the scoop:
My Wharfedales are the Diamond 9.2s, a modern speaker. There is nothing wrong with them and I like them a lot. Despite their wonderful, non-fatiguing sound, they are a bit wimpy. I paid $350 or so for them if I remember correctly (though they "retail" for $500, whatever that means!). The Pioneers are going for $120, and I have no clue what they were worth back in the early 70's. As far as I know, the pioneers are in beautiful shape with no driver issues. I will probably recap them if I buy them though, just because those caps are old old old. I am going over tomorrow to try them out, but the guy says "no cranking them up." So I am not sure exactly how to test them, though I am sure that if there are any issues even a moderate volume level will reveal that.
Yes, groovy grills! I am super stoked about the tu-tone grills.