I loved the first 3 and tolerate vegas 1 & 2 but mostly because of the coop which makes a game like that far more fun.
Do ubi have their own digital game download system yet? If not, what with ubi doing their new "lets sell prince of persia without DRM and them blame crap sales on pirates & say 'OMG told you so!!!!!!!!'" there MIGHT be an opportunity for them on GOG.
At least if I was in on of the request & negotiaton process, I'd be pushing the angle that says "Sure it's a risk selling them without DRM," (I prefer not to lie but it's for a greater good) "but this way you'll be getting income from these old titles again and the risk of lost income is significantly smaller because of the niche market and the age of the titles. On a cost to benefit ratio you stand to lose practically nothing and gain a potentially decent sum including a large boost to goodwill".
That latter part is the most important since even ubi execs can't havefailed to notice the respect they've lost, most probably this is the exact reason POP has no DRM...