After Looking at Dells site here is the break down of the default Ubuntu option (E520N):
Intel® Core™2 Duo Processor E4300 (1.8GHz, 800 FSB)
Ubuntu Desktop Edition version 7.04
17 inch E177FP Analog Flat Panel
1GB Dual Channel DDR2 SDRAM at 667MHz- 2DIMMs
250GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
48X CD-RW/ DVD Combo Drive
Intel® Graphics Media Accelerator 950
Integrated 7.1 Channel Audio
This is about the exact same set of hardware as the Dell Dimension E520:
Intel® Core™2 Duo Processor E4300 (1.8GHz, 800 FSB)
Genuine Windows Vista™ Home Premium
17 inch E177FP Analog Flat Panel
1GB Dual Channel DDR2 SDRAM at 667MHz- 2DIMMs
250GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
48X CD-RW/ DVD Combo Drive
Intel® Graphics Media Accelerator X3000
Integrated 7.1 Channel Audio
The total price is:
Ubuntu: $599
Vita (Basic): $679
The Desktop Linux option is $80 cheaper.
Now for vista we would have to add $169 for ultimate, $119 for business, or $34 for home premium..
The laptop version (E1505N) is $100.00 cheaper.
Your data is contradictory. The specs you listed clearly show “Vista Home Premium” then right below you claim it’s “Vita Basic” (sic). Either would come with a working DVD drive though LOL.