Muller was heavily linked with a move to Manchester United ahead of the 2015/16 campaign, but the Germany forward then ended any speculation by signing a new long-term deal at the Allianz Arena in December.
And the 26-year-old explained that even if Premier League sides could pay him more, he doubted their ability to challenge at the very top of Europe – unlike Bayern.
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"Yes, there were offers from other clubs," Muller told AZ. "But when you look at the sporting aspect, Bayern are among Europe's best three clubs together with Barcelona and Real Madrid.
"The English clubs obviously have a lot of money, but it remains to be seen whether they can return to the European top.
"It was an easy decision to sign a contract renewal from a footballing point of view."
Muller has scored 22 goals in 30 appearances for Bayern this season, with die Roten set to face Juventus in the Champions League round of 16 next Tuesday.