I am amazed at the price online for the T5. $5200!

When I was shopping for a T2 right before the T3 came out you could buy it for about $2800. I purchased a T3 about 6 months after it came out for about $3000. I don't understand the significant increase in price for the T4 and now T5. Inflation is low and while there have been some advances since the T3 a more than 50% price increase seems excessive. I didn't see that type of increase from Korg between the PA2X and PA3X. So what's up with Yamaha?