Answering op's question: yes.
A well build & flown list will always have a good suprise factor. In a meta where everybody uses top 3-5 lists if you build smart you can win easily especially because people get used to flying against certain types of lists and will be thrown off balance. X-wing is balanced enough that you can be quite innovative and if you have skill you can succeed.
If you cant fly well and take a weird build you will get smashed. Then it depends - how competetive are you. Can you have fun while losing? If yes, go ahead and play some stores.

