Isak is a pretty good striker and with Newcastle he can play better than when he was at Real Sociedad previously, we admit Isak is one of the talented Swedish players but for the price pegged by Newcastle of course it doesn't make sense at the moment, I think Tottenham, Arsenal and even Chelsea will immediately back down hearing the asking price by Newcastle for a player who has scored 15 goals.
I think the possible withdrawal of Tottenham, Arsenal and Chelsea is not because they can't afford 130 million euros, but I think it's too risky to buy a young player at such a high price and even when he has only been two seasons in the Premier League, even when we look at his current market value which does not exceed 75 million euros so indeed the price pegged by Newcastle is really beyond logic at the moment, With 130 million euros of course Tottenham, Arsenal and Chelsea will be able to get 2 other players who may be better than Isaak at the moment, besides that reportedly Arsenal and Chelsea are fighting for one more Swedish talent namely Viktor Gyokeres who is still better than Isak, I think even the price pegged by Sporting is not higher than Newcastle for their talented young attacker.
I understand your all logic about this but here also have to understand one thing more as maybe Newcastle United don't want to sell their player so just because of this they are having price tag like this on Isak which is doing impressive performance for them as most chances we will have some improvement in coming season as well because things are going to take good changes in coming season for them after having terrible season due to injuries and suspension of players.
Chelsea already have the good number of quality players, so I have feeling they don't need to invest in coming season they just need to have some depth into their team which is more important for them instead of having any new player now we will have too much news about few players in coming days as we are heading for the end of this season.