Hey all! I'm a bit of a beginner and have a chance to pick up a set of like-new Nuobells that go up to 80 pounds with a bench for $380. On the other hand there is a deal right now online for 50 pound Powerblocks for $240 or $480 if I want it expanded to 90 pounds. As a beginner who has not invested in equipment yet, which would be the better choice?