The same Adi Shankara who supposedly made the rules at Guruvayur, made a statement having a profound meaning = "Bramha Satya, Jagat mithya, Jivo Brahmaiva napara", "Aham Brahmasmi".
If you deeply understand the meaning of these statements, you will realise that there is no need to visit any temple, church, masjid, gurudwara and any other temple. What are these temples any way? A means of asking gullible public to pay for receiving some UNKNOWN blessings of QUESTIONABLE GOD.
People should just stop going to any temple - be it the Tirupati, or the Jyotirlings or the Devi temples. GOD is not so cheap that it will get swayed by offerings of earthly human. What can you offer in any case to the ALMIGHTY who has created all and who is also residing in you.
Temples have converted GOD into a business to earn money and Power. These are just like a market place, a subji mandi.