At least I would be having fun when they shut down the server that's what a game is suppost to be about.
Yes players would be selling items for 50k-99k rps but guess what you don't HAVE to buy them because you can farm and make your own. Right now farming is basically useless who is going to choose a farmed weapon over a upgrade? If you don't buy a upgrade all you can do is tickle other players until they piss.
Like I said I know players that still play doesn't want a 99 cap because they would need skill to play not the most money. If play with did a poll on there facebook page you would see how many really wants it.
edited to add this: Take runescape for example when they did the new combat enhancements over half of there playerbase quit but did they just say lets try to get more money out of the ones that's left to make up for the ones that quit. No they listened to there players and made a old school server that had more players than the new version. Ever heard the saying less is more?