Is Warhammer an expensive hobby?
Warhammer has been under fire lately as being too expensive to get in to. It's an expensive hobby but it's definitely not the MOST expensive. You could easily get a nice building block for your army off of a website like eBay.
Is Warhammer worth the money?
TL;DR: Yes, it is worth it. Your brain has matured more and there is plenty of good reference with regards to painting. Use the Warhammer TV tutorials and you will be just fine.
Which Warhammer game should I start with?
The Dawn of War series is possibly the best in the Warhammer video game canon. There are three games in this tactical real-time strategy series (the latest was just released in 2017). If you start at the beginning, with 2004's Dawn of War, you'll get some dated graphics, but a great introduction to the world of 40k.
Why was Warhammer discontinued?
Perhaps the biggest reason why to end warhammer fantasy was due to the success of warhammer 40k. 40k is their best selling game, and games workshop would have to focus on that, since it was raking in most of the dough. Secondly, the setting wasn't all that different from other fantasy universe.