From my own experience as retailer( now retired, out!), the tapes are the slowest of sellers, and rarely cleared before the season is out. Given that seed vitality is related to age and that they have been "manufactured", as well as passing down the distribution chain, my suspicion would be that the seeds are not on a level platform for viability before you sow. The advantage of precise spacing goes out the window if only a few sprout.
The price is high against pelleted seed, another value -add idea of questionable advantage.
There was a"fad" for mixing seed into a wallpaper paste mix and squirting them out as if decorating a cake with a piping set. Anybody still do this?