Don't know about Wersi's, Bill, but record noise samples have been built into Roland's and Korg's (and probably Yamaha's) for quite some time, now (had them in the G1000, for sure).

The thing is, few styles ever use them, or the band limiting EQ that makes the clarinet demo so effective. But this is not to say they don't already exist on what you have now...

As I have said for a long time, most of the value in a new arranger isn't in the hardware. It's the new styles. Some VERY gifted people work on these, and Yamaha are some of the very best in this department. But, once you hear some of these tricks, it's easy enough to apply them to the arranger you have...

Getting the 'sound' of older recordings is often a case of use of careful EQ... 78's had one kind of EQ curve, vinyl from the fifties had a different curve from the vinyl of the late seventies. Apply these kinds of band limiting EQ tricks on styles you already have will go a long way to capturing that 'vintage' sound. Add a little record noise, and Bob's your uncle!