I agree with you leo. It might be snake oil to some but you cannot argue with results, (or I guess you can if you want to) and some will.
Yep, bud...........each to their own.........as they say!
I've got a pretty new top end Qosmio laptop and after a week or so of surfing, updating and whatnot I notice it starts to slow down a little...........but after running a few of the TuneUp utilities thru the machine I can really see a difference..........I also use the free version of PerfectDisk (I've not upgraded the drives to SSD yet) and that also has a big effect on the boot time and responsiveness of the machine and the programs I use. Would not be without either.............
Mind you I must get round to upgrading my drives to SSD...........I installed one on my sons laptop a few weeks ago and his boot time from pressing the 'on' button to all programs loaded and zero CPU is about 20 seconds.............unbelievable. His machine is based on an old Intel dual core whereas mine is Intel i7 rocket. Everything on his machine is quicker.........on a three year old dual core..........Just because I upgraded to an SSD. In all my times of playing with PC's I have never experienced such step forward as I saw with the installation of a $100 SSD.