Actually, according to the site, PON could have been shipped to the customer and returned. The difference is whether the customer actually 'used' the computer which they determine by whether the EULA was accepted during the first power-up sequence. Since it never appears again, they can power up the machine and determine if it was 'used'.
I just ordered a PON Inspiron 1505 for $1,020 incl. tax. The weird thing is I ordered the same configuration yesterday for about $180 more and I was checking out of habit and saw this system. The only difference was some of the software (not OS...just the extra stuff) so I cancelled the first one and got this. Can't beat that deal with a stick if it's clean.