Fatgodzilla
Cask ale is a whole different kettle of fish, and alot more fiddle farting aorund, getting the carbonation levels right, and attaching the beer engine, cask aspirator, anything else ya wanna do, and it comes out lowly carbonated, which mean most people turn their noses up at it. If you are thinking of an easy way to get bulk beer to your mates at a xmas bash, grab a corny keg for around $100 (or whatever they cost) and a picnic connection and beer tap, for around another $100, and one of them CO2 injector thingies, probably around the $50 or so mark. For $250 (or less) you will have a corny that you bulk prime, get cold bleed the head pressure off, and serve at your xmas bash. Alot less stuffing around, and the handpump will set you back more than $200, $60 for an aspirator, $300 for the barrel, etc.., and then you need a bit of know how on handling and dispensing cask ale.
It certainly isnt rocket science, but it is way more hassle than yer average corny keg and tap. At the end of the day, ya can also use the corny to cask condition your ales, and use a handpump with that. The beer engine isnt a bugger to clean, though, just run some hot water and then sanitiser through it, and Robert's ya father's brother.
Hope that helps
Trent
Edit - You edited in a pic - and it has a tap on it! You wont need a handpump, or anything like that to get the beer out with a tap on it like that. It will still be lowly carbonated though. Could be a nice novelty option if ya have the cash, I suppose.
T.