Congratulations toyloin! Welcome to the plan that keeps the throbbing heart of America (and the rest of the Western countries) beating...
...the concept and application of the "Capitalist Economy"
Everything goes up, every year. It is unavoidable because that's how the system is designed, and that's how it's been for a very long time. So HT will ensure that it's the customer that pays for all that additional outlay and not they themselves...as well as adding a workably healthy profit margin. And in 5 years it can go up a lot, not just the oil, but wages of everyone (with the improved sculpts, that must be quite a hike right there), developing new bodies, cost of fabrics, cost of cardboard for the boxes...cost of the ribbons used for the top layer of a DX figure, paint, the cost of the movie licences and for getting the actor's permission to use their likeness...it is alomst endless.
Direct usage of the idea that the stinky-juice rolls downhill!
And the person that pays for it all, is the customer. But somehow you are acting like this is news to you..?