Skyrim – walkthrough and progression.

If you take out the bandits one by one, you'll have to run for a long time to teleport to the soul pentagram. It's easier to just kill them all. And then you'll have to find new bandits...

You won't believe it, I deliberately didn't complete their quests.

Well, you shouldn't have ignored the Dark Brotherhood. Compared to the Daedric quests, it's just a piece of cake. You can get 20,000 gold for completing their quest chain, and another 10,000 for minor tasks. After completing it, you can take on endless quests, each of which gives you 1,000 gold. The only thing is that you have to hide a lot.

Oh yes, alchemy is a very profitable business. I just checked, and most potions and poisons cost many times more than their ingredients. So you can get rich that way too.

Regarding Solitude - a forge in the house would look strange. And the price is justified by the following factors: the presence of the Barenziah Stone, three floors, the capital of Skyrim... Although, considering that a house of practically the same size in Windhelm (which is worse because the Butcher lived there) costs twice as much, the price is somewhat unjustified. A fair price would be 15,000.