If you are relatively healthy, running wise, I suggest you get a massage on a bi-weekly basis. Compare it to something like going to the dentist for a tooth cleaning and scraping. Its preventative care on an item, in this case the legs, that are constantly being abused/used(just like the teeth)
Since you all run 1 million times more than the average human you owe it to yourselves to spend the $$$$$$$$ and invest in this little but very important maintenance item.
If I had it to do all over again, i would have done them religiously when I was on my game and feeling the groove.
Water under the bridge now.