I think people are overstating what 4 place would mean.
Even if we did finish 4th and even if we did qualify for the group stages it doesn't mean we would suddenly be a great title chllanging side.
We would still have battle to qualify again the season after with Spurs, Man City, Liverpool, Everton all in the mix again.
It would be much better to take the garenteed silverware option (the very thing we support the team for) and be back in the hunt for 4th again next year (as we would be even if we'd finished 4th this time around)