I can understand your reluctance in thinking the outlay to install new LED fixtures would defeat the purpose of saving money on your energy bill, but I can say it really is worth it for a couple of major reasons (at least major to my family lol). First off of course is the power saving, which we really noticed in our old house. In our new house we installed the newer generation of the same LED we had in the old (made by Brightgreen), and these came with the plug in option as @allandorrington suggested - this eliminates any electrician call outs for a failed globe (new version globe comes with driver built in to the unit). Simply remove downlight, unplug and replace, which we haven't had to do as yet. The third added bonus which we noticed a bit in Sydney but even more here in Tamworth, is the Brightgreen LED's don't attract bugs as much as other downlights or normal globes - no clouds of moths and bugs hanging around when the lights are on, even outside. We went with warm white everywhere except for the pantry, garage and over the workbenches - as we find it a more comfortable living light (cool can be quite harsh). Couldn't be more happy or recommend them highly enough - and Lighting Matters (the supplier we got them off) even did a lighting plan for free off our house plans, which was pretty close to what the sparky contracted to the builder suggested as well. We did a couple of minor changes but overall went with what they suggested. My personal opinion of course but I do strongly feel when installed correctly and chosen properly LED's are well worth it.