I think LN's prices have gone up here stateside perhaps 15 or 20% over 16 years. But it may be less than that, too. The one thing that's changed here is that you could always automatically find an internet retailer selling 10% below list with free shipping and no tax.
LN squashed selling below list price so that they could direct traffic back to their website and now sales tax is automatically collected in the US (and shipping if LN's web front is the only place with a plane), so there has been a fairly stiff effective price increase.
I don't mind any of that, though - they're principled and consistent and they did what they said they'd do - they put their own people on the road to show the planes at events rather than having them in glass cases at stores or inaccessible in some places (e.g., some retailers had them in cases and didn't allow any hands on touching or use of the planes pre-purchase, and some did have legitimate issues with theft).
I bought one unknowingly at one point from a gray market seller, and though it doesn't seem odd now, at the time when it took a month to get the plane, I wasn't that happy. I think the gray market leaker was japan woodworker (though the secondary seller wasn't them)...
...well, since this is written in public and JWW may not like that, the seller actually told me that JWW was selling wholesaled planes to them and then they were reselling, so you'd make an order on this person's site, then they'd go to JWW and see if they had them and you had no clue how many donkeys the planes had to be transferred to and from before the last donkey dropped the plane off at your door.