You're over-simplifying. You're mixing two markets. There's the real estate market, which is driving the redevelopment proposals, and then there's tourism which drives the accommodations market. That's been doing just fine over the last few years: Toronto had a record number of visitors in 2016, recording a seventh straight year of growth. The hotels are not, generally, facing closure and replacement because they are going empty, they are facing redevelopment because landowners can reap rewards by building larger buildings on the hotel sites, getting the most bang for their buck from condo sales. Yes, Toronto has needed luxury hotel rooms, but keeping reasonably priced hotel accommodations in the city is important for the tourist industry too: not everyone wants to stay in an AirBnB suite (and as I said, AirBnB is going to find that more and more condo boards will make short stay rentals difficult in the towers).
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