I read quite a lot of condos bought during the 1997 peak are no where near their original price, e.g. Bishan 8 was launched at $1,100psf in 1997 and is now only trading at around $800psf.
But in all fairness, Bishan/Sin Ming has lost its lustre over the years. Used to be "hottest" place for property 10 years ago. I suspect it's something to do with the 99LH stigma - If one stays in Bishan apartment, you're 100% sure the place is at best a 99LH property - an area with only 99LH properties will never rise to the same level of prestige as another area dominated by FH condos - e.g. Bukit Timah (both lower and upper), Holland, West Coast or East Coast.
Upper Bukit Timah at $1,250 psf to $1,450 psf is indeed "forward" pricing. I thought it would suffer the same fate as "The Sound" and "Flamingo Valley" but looks like units are moving... strange. I'm pleasantly surprised.