This subject made me go to ebay and waste 3 hours browsing for used hardware 
And looks like I discovered another option: to buy a whole server i.e. an actual server, something like this one (these people seem to be selling whole crates of them
):
The only problem with these is the horrendous noise they produce
(2U\4U units should be better because they have larger, slower-spinning fans..)
But if there's a free space in a dark far-away basement corner, where no one can hear it, I think it's an awesome option! (or convert it to water-cooling..)
Maybe I'll actually try that as a small project in the new year, as I do need a backup for my trading computer..

And looks like I discovered another option: to buy a whole server i.e. an actual server, something like this one (these people seem to be selling whole crates of them
):The only problem with these is the horrendous noise they produce
(2U\4U units should be better because they have larger, slower-spinning fans..)But if there's a free space in a dark far-away basement corner, where no one can hear it, I think it's an awesome option! (or convert it to water-cooling..)
Maybe I'll actually try that as a small project in the new year, as I do need a backup for my trading computer..
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