I have to agree that its too simple to get what you need or want. One of my favorite things was mining and the above ground stones that appear for every mineral is taking away my fun of exploring deep mines for my needed minerals. As well a the fact that you can buy everything at a trader, Gyrocopters to Chemistry Stations means less to look forward to in later game stages. the books are cool but some recipes could be locked for a later game stage. In other words there is not much to look forward to in the future and its become a bit more like a FPS with elements of survival, base building and crafting, when it was much better as a survival, base building and crafting game with FPS elements.
Its kind of a hand holding Oblivion with fast travel and quest markers compared to Morrowind, well that's an exaggeration of course as it is still a good game (as was Oblivion), it just seems now its taken a step back from previous versions IMO.
If I had a wish list it would be:
1) Go back to deep exploration mining to find the best sources of materials especially oil shale, and bring back iron ore instead of only scrap iron.
2) Cut down on the recipes for advanced crafting.
3) Allow players to build purple items in late stages.
4) Do not sell certain items such as vehicles, chemistry stations and the like at traders.
Sorry if this sounds like a whiny rant, I just agree with the boredom the OP is experiencing. Although it may more than likely be just me bored in gaming in general, in which case its not the games fault. I was playing Jagged Alliance: Back In Action and that game did get me way addicted the way 7 Days used to, so I don't know, maybe like BB King and "the thrill is gone" type-thing.