I wouldn't call him lonely, he had constant visitors from all over the world and his followers ensured him that his philosophy would not die out.
Moreover, the 'junkie' part is misleading in that it sounds a lot worse than it was in his day. Crowley had chronic bronchitis (decades of smoking will do that to you) and heroin was commonly prescribed back then to help with symptoms. Not like he had to score smack on the street, he had access to top-notch pharma-grade heroin to use as he saw fit, something which isn't possible today. I'm quite envious actually and can't imagine a much better way to spend my final years.
Moreover, the 'junkie' part is misleading in that it sounds a lot worse than it was in his day. Crowley had chronic bronchitis (decades of smoking will do that to you) and heroin was commonly prescribed back then to help with symptoms. Not like he had to score smack on the street, he had access to top-notch pharma-grade heroin to use as he saw fit, something which isn't possible today. I'm quite envious actually and can't imagine a much better way to spend my final years.