Yeah I don't have a good excuse for waiting except it was my wife's primary computer for the last few years while she completed grad school and I didn't use it much to notice how much slower it seemed as compared to a modern SSD-based machine. Definitely wish I had done it earlier now.

It was an old work machine that I got to take with me when I left that job so it was far overspecced for casual use.. though it feels so much better now.