rising rents: a prelude to crashing Real-Estate bubble

We've been talking about the rising rents in the Seattle area on a number of other threads, but we haven't really discussed the possibility that increasing rents could actually be an indicator that the real-estate market is peaking and set to crash.
Here's the argument:
- At the peak of a real-estate bubble increasing numbers of potential buyers decide to rent instead of paying exhorbitant prices for purchasing their own home. Conversely, when a bubble is still healthily growing increasing numbers of people decide to buy rather than rent which lowers the demand for rental properties.
- The final mania of a real-estate bubble leads to a squeeze on rental inventory as many home/condo owners rush to "cash out" and benefit from the escalating property values. Condo conversions are a case in point, as rental inventory is taken off the market altogether. Further adding to the desire to sell rather than rent is the depressing returns landlords stand to make from renting (i.e. since rent P/Es go way out of wack in a bubble).
I think there is a great deal of anecdotal evidence to support this hypothesis (i.e. that rising rents are a sign of impending collapse) from numerous markets across the country that are further ahead in the cycle than Seattle. Miami, San Diego, and Las Vegas have all seen the phenomena of DECLINING rents as the bubble gathered pace several years ago, followed by a relatively short period of time when rents were rising (at the same time as over-all real-estate inventory).
Eventually, however, rents seem to go down again as the broader real-estate market falls apart and struggling home-owners/specuvestors decide to rent to stop the bleeding. Many of the new condos and homes that have been purchased with the intent to flip for a profit wind up coming back as rentals.
Does this theory hold any water, or am I making too many leaps of fancy?
Here's the argument:
- At the peak of a real-estate bubble increasing numbers of potential buyers decide to rent instead of paying exhorbitant prices for purchasing their own home. Conversely, when a bubble is still healthily growing increasing numbers of people decide to buy rather than rent which lowers the demand for rental properties.
- The final mania of a real-estate bubble leads to a squeeze on rental inventory as many home/condo owners rush to "cash out" and benefit from the escalating property values. Condo conversions are a case in point, as rental inventory is taken off the market altogether. Further adding to the desire to sell rather than rent is the depressing returns landlords stand to make from renting (i.e. since rent P/Es go way out of wack in a bubble).
I think there is a great deal of anecdotal evidence to support this hypothesis (i.e. that rising rents are a sign of impending collapse) from numerous markets across the country that are further ahead in the cycle than Seattle. Miami, San Diego, and Las Vegas have all seen the phenomena of DECLINING rents as the bubble gathered pace several years ago, followed by a relatively short period of time when rents were rising (at the same time as over-all real-estate inventory).
Eventually, however, rents seem to go down again as the broader real-estate market falls apart and struggling home-owners/specuvestors decide to rent to stop the bleeding. Many of the new condos and homes that have been purchased with the intent to flip for a profit wind up coming back as rentals.
Does this theory hold any water, or am I making too many leaps of fancy?