I tend to avoid the type of gear that changes audibly. Manufacturers can design gear to be dramatically less affected by burn-in by simply designing it in such a way that it less sensitive to the things that do drift with use (capacitors, driver compliance for example).
Why don't you contact me via Audiogon. I see your comments here frequently and you seem to think caps and break in are a bad thing.
I can give you the name of the designer/ manufacturer that builds ALL the current hot caps that are on the market, sold under a dozen different names.
He will tell you break in is not only real but important. YES, it effects the sound greatly and if you think you can design around this, you are missing most of the great equipment on the market today.