At the start of the generation I was happy to pay it. In my opinion gold seemed better than PSN for a significant enough margin to warrant my paying for it. As the gen went on my feelings on the matter began to change. Yes, the price per year has fallen from £40 to £30ish, but it's starting to feel like they're locking off unrelated features to force people into buying it (features that I never actually use).
Overall I've been happy with it this gen, but if MS try it again with the 720 I'll be changing to PS unless they include benefits to joining like PSN+, rather than the current benefits which are actually just letting you use apps that are free online anyway.
Overall I've been happy with it this gen, but if MS try it again with the 720 I'll be changing to PS unless they include benefits to joining like PSN+, rather than the current benefits which are actually just letting you use apps that are free online anyway.