Think about it like this - if Mr Jo Bloggs was looking for a house, would they miss this feature and thus be turned off your house?
If yes - you're best to install it.
I know many people don't/wouldn't use an antennae, however I daresay they'll be used for a few years yet, and you'd be foolish to turn away potential buyers over a simple/cheap decision now which would work out to be a very expensive one down the line to retrofit.
I know you're designing your house to be 'yours' but the simple fact of the issue is nothing stays the same and you have no idea if you receive an amazing work offer from overseas/elsewhere and need to sell/rent your house.
Which is precisely why I've had the coax cables run as part of the first fix; it's cheap as chips to do it now, so no great effort needed if I ever decide to use it, or sell the house as you suggest. I've taken that approach with a lot of things that would be really hard to do after linings go up.