Travel from the eastern part of Canada to the west is expensive.
Unless you are going in the hopes of being crowned Canadian IPSC champion, there really is no motivation for "regular" shooters to attend unless you really want to shoot the nationals and you make a vacation of it.
Its a world shoot year, so a number of the people who have a spot to go to Florida, are using the funds they would have spent to go to BC towards the world shoot expenses.
The next world shoot will likely be in a country much farther than the US, so not all Canadian slots will be filled. This means qualifying for a slot may not be necessary, so missing this year's nationals won't affect your ability to go to the next worlds.
Pretty simple really.
You've asked a couple times in this thread about Ontario headcount but I don't see your name on the competitor list????
The reason you aren't going may be the same as everyone else.