FWIW, my $80 TIs have been in continuous use for ~10yrs.
Obviously, it's a considerable cash outlay up front if you're not sure you'll like them, but they are very reasonably priced if you like/keep them even a few years.
Just be glad you don't play upright. $250 string sets aren't uncommon, but they'll last a long, long time.
Or you could pay more for guts that don't last as long.