4.0 Ltr V8 should I?

Hi everyone long time no post, too busy enjoying the car and planning retirement.  Anyway spotted a nice looking 4ltr S-Type (well aren't all S-Types nice?) not too far away and not too expensive.  Less miles than my 3ltr but it is older on a T plate.  Not bothered as such, but it does sort of seem I'm going backwards.  I'm not doing many miles in it now, around 3k a year so running costs aren't an issue, besides would like to think almost pennies to swap.  If the figures add up should I?  I've just covered almost 900miles in mine going to Wolves, Lands End the home, averaged 32 to the gallon and it was like sitting in an arm chair.  Actually it was a lot better than the armchair.  I'm aware of the issues around the early 4ltrs, but would think these would have been sorted by now.

I do love it, would I love the 4ltr as much????

Oh decisions, decisions.

Anyway hope folks are all ok.

Gary M