I look at it like this... The technique of relicing a guitar can be very artful. This involves a lot more operational expense in achieving the desired results. If it's done right, and with good old marketing, the manufacturer has a market for these types of guitars. The manufacturers can charge whatever they want, but usually this has been analyzed to what they think the consumer will accept.
AFAIK, these high dollar reliced guitars are all selling. It's not like Gibson is making a bunch of these because these are actually very limited. So you have a choice here: Buy one, or not buy one. Gibson will always make shinny examples too. Personally, I admire the work and creativity of a beautifully done reliced guitar... but I choose to never fork out a butt-load of money to own one.
Howfrickingever... If I was very wealthy, I just might buy a $10,000 reliced (Gibson) guitar and hang in a beautiful display case as living room wall art... and never play it!