| Cheap for complete systems : yes|
Why? : becuase they are such a large
company the sign exclusive deals and buy
bulk so that the prices they pay are much
lower than those the general public do.
Easy to upgrade : no
Why? : To force you into buying a new PC
instead of a major upgrade, many of the parts,
such as cases, power supplies, and often motherboards are specific to Dell, and to not follow the standard form. So you can add a shiny new sound card to a Dell, yes, probably a new graphics card too, if the mother board has the right slot. However putting in a new motherboard can be very very difficult.
Dell laptops should be fine though, as
no-one really upgrades their laptop, apart
from the odd stick of RAM here and there
which can be added to almost all laptops,
including ones from Dell.
Hope that helped, AMO, lol
AMD Athlon 2800+ barton @ 12.5 X 171 : 2134.5mhz
512Mb Corsair RAM
MSI KT6 Delta mobo
Leadtek AGP 6600 gt 128Mb
120Gb Seagate HDD