Recap or full record? What kind of event video you need
Most confusion in event video quotes comes down to two people using 'event video' to mean different things. This sorts it out in two minutes.
A short, edited piece built from the whole event, cut to give someone who was not there a feel for what it was. The most common thing people ask for, and usually the most useful thing to have afterwards.
Website and social use, sponsor recaps, next year's ticket sales, giving a board or funders a sense of the event.
Every speaker, every session, every award. A recap is a selection, not a record.
A session or speech filmed end to end and lightly trimmed. Cheap to shoot, not built to be watched for entertainment.
Compliance, training material, AGMs or anyone who needs a specific session in full.
The pacing of a recap. It is the session as it happened, lightly trimmed.
The conference version of a full record. Several talks filmed individually, with clean audio and slides, so each one can be published separately afterwards. A bigger job than either of the above, since it usually needs more cameras and a proper feed off the AV desk.
Conferences where individual sessions get repurposed as their own content afterwards.
A single short piece. It is a library of talks, so you will usually want a recap alongside it.
What this changes on your quote
Two quotes for 'event video' can look wildly different in price for a reason that has nothing to do with one supplier being better or worse. If one is quoting a recap and the other a full record, the numbers were never comparable in the first place.
Before comparing prices, decide which one you want, or ask whoever is quoting to price all three.