The perks are fluff and can be taken away at any time. Only buy if doing so without the perks makes sense. The only exceptions would be for those that are very savvy and where only 2 or 3 years of the perks would pay for their membership such as someone who usually goes a lot but usually stays off site, those who put a lot of people on a small deed to take advantage over a larger group of people or maybe those that live in the area and visit a lot and the free valet has a significant value to them.