If I will go for a vacation, it would affect my profile rating?
I think your gig will down and it affect to get ordered after your comeback.
Yes, if you put your gig on vacation mode, it will likely drop in the rankings. This is because the search results rank gigs based upon performance. If your gig is on hold, and is producing no performance while you are on vacation, it will probably drop a bit when you reactivate it upon your return. You should, however, be able to make up those losses by once again being a great active seller.