In reality, they really aren't. I could be doing this simply "because I can", while I'm not, it really doesn't matter. I am about to start process of handling special effects/post production work for a recently shot 30's/40's Noir crime short for one of my Director friends, a task that while I don't doubt my rig can handle, I'd rather not have to dedicate it to that when the time comes. That among with a few other local media projects (some PSAs and other nonsense for a local community college) are some of the multitudes of rendering tasks that could be off'ed on it. I also have a number of personal animations, portfolio work and the like, that I have not rendered simply due to the time it would take. It should also be noted that I, as we speak, have a number of beta/alpha softwares I am testing, and since many of them are not optimized, some of which are used in development level work, are huge. I have a LOT of space on this computer, but while I have the bays for more drives, I do not have the ports on my motherboard, and my space is rapidly starting to dissipate (I still technically have plenty, which is one reason this new machine likely won't happen till after tax returns at the start of the year). And hell nearly 50 GBs(and growing) are dedicated to a constant physical backup of the entire JKHub site, and everything we host. I COULD simply get portable drives, or even upgrade to larger ones as a few of them are on the smaller side, But I could also just as easily, (not cheaply), get a secondary computer. Also, I travel, a LOT, usually to places or events where I could easily use a desktop, if I had one. Mine is far to large and heavy to be traveled with. And I own a laptop, but it doesn't handle a lot of the things I typically run very well, especially if I am running say, Maya and Mudbox in parallel. And god forbid I need to render in Premiere or After-Effects. Now I could spend a few hundred bucks for a brand new one, but to really get a design level laptop, I could still be looking at at least near a grand, and it probably still wouldn't equal out to a desktop built for the same amount. If I build a PC with a smaller footprint, I could travel with it more easily, and be able to still use a decent desktop, when not at home. I've already mentioned the server options, Perforce and what not. The fact of the matter is, I don't dedicate my current desktop to most of this, because while it itself stays perfectly cool even when rendering and the like, it puts out far too much heat for my small apartment room (My desk is completely beside my bed.) Old photo from when I moved in a year ago, but the layout is the same, just more monitors. There is a reason I keep that fan level with my head. So essentially, if it gets left on for anything more than a couple hours at a time, my room becomes unbearable, as the A/C is not particularly well ventilated. If I had a smaller PC, that put off less heat, I could keep it in here, and put the larger one in the living room. Simply allow it to be the "community gaming PC" between my roommate and I.