Its certainly an or more factor if the item is prepared yet I would not discount a decent ICO on the grounds that it doesn't have an item yet.
In the event that the item, whitepaper and group are great, and if the guide is being tailed, I see no motivation to reject an ICO basically in light of the fact that it doesn't have a last item yet. A case of such a case is DIW Token who did not begin off with an item but rather have prevailing with regards to realeasing the alpha rendition of their item 2 days before the finish of the ICO