For me, the only reason to get a Lynx was Ninja Gaiden as everything else on that portable was available in a better iteration on something I already owned. I wasn't into After Burner style shooters so no need to bother with Blue Lightning. I was burned out on basic maze games and the Pac family titles that showed up were just that - ports of nearly a decade old arcade games with nothing new or interesting (and those games were on other platforms).
There just wasn't much interesting, at least to me, exclusive to the Lynx. Even today, the few I have seen come up for sale locally are priced quite a bit higher than I care to pay.
Oh man, the TG-16 was definitely on my radar for a while. I wanted Splatterhouse and to play Blazing Lazers but the local EB only ever had games like Tricky Kick, JJ and Jeff, and similar titles in stock. They only received 1 copy of Splatterhouse, it was apparently a low print run as NEC had little faith in it in North America. To think they pushed JJ and Jeff HARD just makes it worse.
It was expensive though. I got one on clearance after TTI pulled the plug on the Turbo Duo. I think I got the TG-16 and 5 games (China Warrior is the only one I remember, I think I got Vigilante as well) for $100. I remember the EB I bought it from had the Japan version of Splatterhouse but it was $89, not marked down, and they were sold out of the card adapter so basically useless to me (even if I had the $129 they were charging for the adapter - I did not). $200 to play Splatterhouse was just out of my budget.
RE: Looking back on early Zelda vs now-Zelda