Warranty -only advice - buy local & hope it's never needed !
I suppose it's all a matter of profit margins, now it is so slim, most pre-built
towers off the shelf cannot be duplicated
individual parts by the home consumer (total costs - I have

compared many)
Quality - yes ~ There is no satisfactory substitute for choosing & assembling your own components
The motherboard in particular -which determines most of other peripherals
OLd iron - good value - BUT no Sub for pure CPU power or bus in/Out data speeds (if needed)
Plastic - widely used term but which type - there are thousands, some very good indeed
Magnesium is expensive, far more fragile than (quality) synthetics
BTW - how many realize magnesium is very flameable - burns so intensely, almost impossible to extinguish ?
(I found that out the hard way-

got pretty 'exciting' for a while)
Quality - now there is a term not necessarily related to end-price
Delving into how LCD monitors are constructed - there is no justification to prices compared to CRT monitors
Not in materials, Mfg costs or precision to align components - electrical values & three emitter "guns"
LCD screens are more fragile - even tapping may create "dead" pixels !
Colour purity/view angles _ CRTs still have edge
Only one "native resolution' -for LCDs, which is not as good as it should be
Not unusual for CRT's (TV or monitors) to last many years
Lcds - have bad reputations for longevity
If I get
too tempted - at present only Samsung has a
'no_dead_pixels' warranty policy
But - (always a but?) have read reports where the owner had to fight to have that honoured
Coming into cold weather now - that 19 inch
room heater of mine still refuses to die .....
And the weight of the beast - just so I don't have to lug it downstairs !
All the rest - heck, won't be long all will run on flash memory - few moving parts ?
Lets see - wireless - If more reliable - sure would be nice to trash those tangled miles of cords
Just so long as - parts don't get TOO small ( ever miss-place your cell phone) ?
Darn thing

should have a built-in "trace beeper"