becoz you've yet to discover the real yuen long.
If you'd like to escape the over crowed town center, I'd recommend rent yourself a bike for HKD$10 near Long Ping MTR Station and cycle alone the bike path towards Ping Sha, or the opposite direction towards Nam Sang Wai.
You can also take a short break by visiting the nearby Fairview Park or take a historical walk to Kat Hing Wai.
In short, you really need to be the type of person that are willing to learn and be part of the culture to enjoy this part of Hong Kong; if not, maybe is time for you to move back to the "gwai lo" friendly part of the city (e.g. Central, Happy Valley, Tsim Sha Tsui)
Cheers.