Quoted from Deaconblooze:
How often do you have to clean the lines? Difficulty?
I've been debating whether to get a kegerator or not for a loooong time..
Cleaning the lines is not hard at all. Takes a little time but again it's not hard!
Whether or not to buy a system, depends on how much you drink and what beers you drink! Domestic beers typically last 30-45 days. A lot of beers you can get in a sixth barrel (2.2 cases of beer) which is nice! When you get into the beers that are not available in a sixth you need to make sure you can drink 4-7.5 cases of beer within that 30-45 day window or you will be wasting beer!
If you decide to go with a system look in Craigslist as they're often up for sale as a lot of people buy them only to find out that they don't use them often enough. I was already to buy a commercial unit for 1200$ but the guy I was purchasing from sold me on a used larger unit (3 taps) for 500$. He had taken the unit in on trade as the person upgraded their business with a walk in unit. For 500$ the guy cleaned the unit, added all new lines, included the couplers and taps. When I redid my bar I replaced the 3 taps with a 6 tap tower. Its great to be able to have a party and put 6 different beers on tap!!!
One thing to consider when purchasing a system is their is additional cost for things like couplers, tanks, spouts etc. For example different companies use different couplers. Last time I checked there were 7 different couplers. One beer that comes to mind is Guinness. To have Guinness on tap you need a special coupler, tap/spout and it takes Co2/nitro mix. If you're someone that just drinks domestic then you just need a US Sankey!
If you have any questions or concerns feel free to PM me. Always willing to help out!