Famous Grouse = Jim Beam White. Not terrible, but not really notable either.
The biggest difference between scotch and bourbon is that all bourbons have some level of sweetness to them that is simply not tolerated in scotch. If you can't get past the dryness of scotch, it is never going to fit you palate.
However, the world of scotch is wide and varied. A good highland scotch can go down smooth as water, with nice soft and velvety flavors. A nice islay scotch has good peat and brine and packs a full-mouth punch of flavor.
The real problem with scotch is that it is simply more expensive. To get a scotch that is as good of quality as a heavy hitter like Blanton's, you are going to need to drop $75 or so for a bottle.
If you are serious about trying new things, you should bite the bullet and go to a good bar and try 3 or 4 $12 drams of scotch. Start with a nice smooth highland, then something peppery / leathery, and finish with a big Islay, and see what you like.
If you like blanton's I would think that you would go for something more bold than a highland scotch, so don't stop at Glenlivet.