I was going to write about how that maybe she decided the pace of the game wasn't optimal, so she would get it later and never got to before the game ended.
Then I clicked on the game and can't help but go
First of all let's talk about the Midas: Don't get it on Spectre, unless somehow the other team crazy feeds you and you get it by 3 minutes or something ridiculous like that, and in that situation you would probably win even if you rushed a Rapier. Midas's main attraction is the XP gain, and Spectre generally benefits more from gold. Putting yourself that much gold in the hole could have been something toward your Radiance or other item.
Then we have the biggest pet peeve of mine that I see Spectre's do sometimes: Daedalus. +damage doesn't spread to illusions, they get nothing out of it other than the crit of the damage the illusions normally do. Definitely not worth that asking price when you could get so much more out of other items, and cheaper items. The other issue with it is where Spectre's damage comes from. Her damage comes from either illusions, Desolate, or Dispersion. Daedalus benefits none of these. Desolate's Pure damage hits BEOFRE your attack does, and is not actually part of your attack. Ever tried to attack someone while blinded or evasion with Spectre, and you missed but were still somehow damaging them? That was the Desolate procs.
As for dispersion, you need some kind of HP or damage mitigation item. It used to be all HP all the way, but with the Dispersion change you can get Magic Resistance or Armor and still get good value out of Dispersion.
Radiance puts out a good DoT and miss chance, and of course hits everyone when you Haunt, cancelling blinks and the like. Going Vanguard into Daedalus into what I'm assuming is heart (the Vit booster) is not capitalizing on the hero's strengths at all. Vanguard is fine, and may be the item you need to catch up, farm the jungle or something like that. I think you definitely want get Radiance next though if you choose to go that route.
The hardest part about playing Spectre is making the right judgment call during the 10-20 minute mark. You have to look at the situation, your farm, what farm you can get soon and decide if your next item will be Radiance, or if you need some little things before that. Radiance should always be somewhere in the pipeline though.