Reasons for buying resale:
1) The building is actually built. There is no chance of buying something that may constructed.
2) You can actually see what the unit looks like & what the actual unit views are before you purchase.
3) You can see what the building culture, structure & amenities are all about before you purchase.
4) If the unit includes parking and/or locker, they are already on title, so you know where they will be.
5) You have a definite closing date, there a no building delays.
6) Usually neighbourhood amenities already exist.
7) You already have building management in place & get an idea whether they are doing a good job (maintaining the building, staff etc.)
8) There are no developer fees, or development levy costs in addition to your purchase price.
9) You can examine a status certificate, confirm a number of different things: what the current maintenance fees are, if there are any large upcoming costs, any lawsuits, the number of tenants vs. owners etc.