If you're using a rodtip/quivertip for bite indication, no problem, just strike when the tip goes round, I wouldn't use a baitrunner for that job.
If you're using a bite alarm and possiblynot watching the tipand a decent fish picks up your bait, self hooks itself, then runs,with a baitrunner facility on and engagedyou won't lose your rod and reel if you're temporarily distracted. If you don't have a baitrunner there's a chance you could lose the gear if your anti reverse was on.
If it were me, andI wanted a reel to do both the quiver job and bite alarm job, I'd get a baitrunner. If I was only quivertipping, I'd swerve the baitrunner.
There are Okuma's (I think) that have a lifetime guarantee and are still reasonably small and lightweight. Although I personally wouldn't worry to much about weightas the rod and reel spend most of the time in the rest anyway. So long as the reel feels reasonably balanced with your rod when you actually get hold of itis the most important thing!
Let us know what you choose and don't forget to fill in a review of the tackle you've bought after you've given it some use.