Give it a go, but don't expect miracles. Upgrades aren't nearly as common as they once were.
There are a lot of ASICs around, too. Whichever airport you are flying out of will have several thousand on issue.
You have a reasonable chance of scoring discount coffee, though I've noticed that the local pirate port f&b staff now ask non uniformed, ASIC wearing people if they're actually on duty, which suggests that they're onto this particular racket.
