I'd disagree that it's a lack of original material that's the reason for the choice of doing covers. The record company want an album that they can promote on the TV/radio and they'll know that the most attractive selling point to the people that they're targetting (who are definitely not any members of this or similar fan sites) is that they look at the list of songs and say "Ooh, I know that one". It's very difficult to sell an album of original material to a primarily older audience (who are generally more conservative and discerning in their choice of purchase), because they don't want to take a gamble and aren't really looking for their expectations to be challenged.
It's just a money-generating machine. Hank and the record company know that these albums sell well enough to justify making them, and that enables Hank to continue doing what he enjoys (the gypsy stuff) on his own terms. These albums aren't made for "the fans", they're made for the people who remember who he is and quite like the sound of it based on a series of clips in a 30-second TV advert.
At least he's not doing what a bunch of 1970s artists are doing and releasing note-for-note recreations of the old hits because it'll earn more money than the originals did, due to bad publishing deals (even though The Shadows did that back in 1989!)


