Indeed. Serious collectors of a particular artist will always buy product issued by the recognised company. Those who are unsure and are more of a casual buyer initially, may not want to drop serious money into lavish expensive box sets when they are dipping their toe into the artist’s repertoire. Sony got it right with Elvis a year or so ago when they released a 60 CD set of all his albums at a very reasonable price. Couple this with Sony allowing the collectors label Follow That Dream to put out all of the original lifetime albums together with session material and in super 7" packaging, which they have been doing since the turn of the Century and you have a pretty good recipe for fans to buy into all kinds of material and build up exquisite collections. Those fans are simply not bothered by Public Domain hit type releases.