Every time this topic comes up I find myself either laughing, choking, groaning, gagging, or just getting dizzy and falling into a catatonic trance.. Not sure why this happens. Just a natural reflex I guess.
If my monthly retirement income wasn't enough to qualify for a retirement visa in Thailand, I wouldn't have retired here. Having 800,000 THB frozen in a Thai bank account is something I would never even consider. The Elite Plan is a sham. It would be a cold day in hell before I walked into Immigration and handed anyone 600,000 THB for anything.
This is Thailand. And the way I look at it, they (Immigration) will do everything in their power to get as much money from you as they can, and will use their legal discretion (legal loop holes) to do exactly that. The only way to beat them at this game is to not play the game. And the only way to not play the game is to comply with the requirements. No huge sums of money frozen in their banks. No small fortunes slid into their pockets. And no visa agents - who serve as nothing more than the conduit for the flow of funny-money into the same pockets. You either have the income necessary to live here - or you don't.
If they were to ever raise the monthly income levels in excess of what I'm bringing in without having a "grandfather" clause,, I'd move to another country.
I fully understand that some people have plenty of money in the bank, but don't have a monthly retirement income that meets the minimum requirements. For them, I guess the 800,000 THB method is something to consider, BUT, only if they're financially secure enough to be able to freeze this amount of money in their bank without incurring any financial hardships. The problems come into play (happens often) when people are not financially secure enough to do this on a continual basis and start having financial problems. To be honest, if I was in their shoes, I would not have selected Thailand as my place for retirement.