$415 is a great price. My rule of thumb for Ruger street prices is 80% of list. List on this revolver is $565, and 80% is $452.
I love my 4 5/8" 45 Convertible. You're gonna want some gun leather too, with a cartridge belt. The first time you shoot full power 45 acp back to back with full power 45 Colt (neither +P) you will be amazed at the difference. The Colt Puts the ACP to shame.
. . . just a minute . . . have to buckle on my rig . . .
Ah, that's better. Where was I?
Oh yes, 45 Colt has some wonderful power. IMHO just right for a sidearm. Recoil is a revelation, and you begin to wonder why firearm makers got away from it. Accuracy is wonderful. The click of the hammer as you pull it back is addictive.
By all means, buy it. You'll love it.