Obviously it's been 12 years. But things that I used to be rather expensive or considered good rewards from treasure trails or just in general aren't that great a profit anymore.
For instance- 9 year old me would shit to see purple elegant at 900 gp. (Which I kind of get, cosmetic scape is gone) Or dragonstone jewelry isn't worth hardly anything anymore. My best friend logged on to see the prices of yew logs weren't the same anymore.
It's really interesting to see the differences of actual 2007 and the OSRS game currently.