Alternatively: Craigslist typically will have lots of adjustable benches for sale, and for $300 you usually get a set of weights along with the bench. For $600 you can get a full cage, weights, and adjustable bench. I sold my set 3 months ago and supersized to a Rogue squat stand and bench.
In Texas we have a chain of sporting goods resale shops called "Play it Again Sports" where you can find adjustable benches for less than $100.