For your existing situation - 1 loco, single operator, simple 4x8 layout, whatever scale, DCC is probably not for you. BUT, if you intend for this layout to be your beginning of a larger rail empire, then you might want to consider DCC now rather than a more expensive entry later.
It is what makes the best sense for you. You have heard in the previous posts about other options. There is a wealth of information in other threads here about what DCC can do. You should try to look at some of them. Go to Loy's Toys or Tony's Trains for DCC primers and a wealth of information about systems.
It all comes down to what you want to do in the hobby, and how deep into the "techie" stuff you want to go. DC - simple and usable with few complications: DCC can be as simple or as complex as you want to make it - but it gives you so many more options to enjoy the hobby (i.e. running trains rather than positioning and repositioning switches on a control panel.
Just my $0.02.
What ever you do - enjoy it to the fullest.