All the receivers mentioned so far in this thread, do have blind scan.
There is nothing wrong with ignoring that feature, to get you going.
Tons of programming can be explored without it.
If you were setting up a receiver for your kids, for a non-technical friend or relative, or maybe just the rest of your household, you might do without.
As mentioned, finding feeds does mostly rely on the blind scan.
So, if aren't looking for those, . . .
Another use, is to figure out which bird you've pointed at when you are first getting started.
Kind of a newbie-crutch.
I consider it fishing with dynamite, or: what's the point?
So, since you can get good receivers which have blind scan, for about the same price range as those without (or only a little more), why pass it up?
For a first receiver, unless you are simply planning on getting some very limited programming and never looking for any more, I'd recommend it.