In our professional experience, it really comes down to the nature of the damage and how extensive it is.
If there are instances of damage that are widespread across the majority of a room, repair just isn't going to cut it. The main goal of carpet repair is to conceal damage and leave the repair completely invisible, but if numerous small repairs are needed across a large percentage of the surface, the result will not be satisfactory and the whole thing will look "off."
The other factor to consider is cost. People tend to assume that repair is less expensive than replacement because of the lack of material costs associated with a typical Aurora carpet installation. However, that's not necessarily the case. If numerous small repairs or major work is required, it will be time-consuming and therefore costly. In a situation where repair would actually cost more than replacement, a new flooring installation is obviously the best choice.