Of course, that position isn't generally supported by the threads on this very forum. 😉
iMacs over the years have consistently had issues, many due to QC and supplier issues, ranging from bad conterfeit capacitors, bad LCD panels, defective video circuits and many of the problems seem to arise a awhile after ownership.
PC's also suffer the syndrome, and Dell, HP, Gateway, Sony, Toshiba . . . all have their respective issues.