Browns are tactile, but the tactile point is not quite as pronounced as the blues. Since they are very light switches, most people have the tendency to be fairly heavy-handed with them and push right through the tactile point. Because of that, most people that try browns when coming from buckling springs, ALPS, rubber domes, etc. don't particularly like them. In my case, I "worked down" in resistance from BS to ALPS to Cherry browns, but even then, I thought they were too light at first. I stayed with them for a few weeks and got used to typing on them, and they soon became my favorite switch.
It's one thing when you have been in the mechanical world for awhile to take a chance on a switch you don't know if you'll like, but coming from the rubber dome world, you might not get enough "wow-factor" from Cherry browns to make the purchase worthwhile. I would log some time on the Das for a month or two, and then check out something with browns. On eBay, you can find old Compaq MX11800s. They have browns and can be had for about $30. They are generally well-used, so they may not be the best example of the switch, but they're cheap.