Well he obviously wants to spend time with his dad, which is great.
Maybe OP can find other activities to do on vacation. Like renting a cabin or cottage somewhere near a lake or river. I know I loved to go on fishing trips with my dad. Or doing campfires and roasting marshmallows, etc. I miss the 1on1 time we spent together.
They ran on cheap prices and no commercials to get people hooked. Now that they dominate the market, they raise the prices and include ads for increased revenue.