Yes, but the only ones Ive played that fall in to that category are Harry Potter games (really I shouldnt have been surprised). The first 3 were ok (I was under 15 when I played these), 4 was completely awful, 5 was better but I coulndt get past a certain point due to a glitch (or a stupidly well concealed solution) and 6 on the Wii was terrible (with another annoying point like in 5 where it was almost impossible to figure out what to do).

Deadly Creatures for Wii. I bought that sack of shit at launch, and couldnt grind through the plentiful glitches, boring locations, and predictable enemies. Out of 10 levels or so, i got to 7 i think.

FF 12 played it for about 1-2hours

Sonic and the Secret Rings played it about an hour

Shadow of the Colossus played it a bit just could not get into it.

HALO 3

call of juarez

Too many to count. The worst offender for me this gen was probably Motorstorm. And I really like racing games.

Oblivion, Haze, GTA4, Fallout 3, Far Cry 2.

Such terrible games. Well, I occasionally play some gta4 to run over some poor unfortunates, or punt a taxi with my chopper, or do the swing set glitch. But the game still falls into the too bad to beat it category. Haze had some elements of coop splitscreen fun, but how badly the game is made is an epic feat in itself. Oblivion entertained me for a while, the gladiator arena championship was fun, as were some of the dark brotherhood missions. But in the end it was far too boring to continue. Fallout 3 was similar.

Far Cry 2 was terribly bad all round. No redeeming factors.

I have a number of other games that I've bought but barely played, like burnout paradise, DA:Origins, Motorstorm, dark kingdom, sacred 2, Saints row 2. Have the money, just not the time.

I've purchased good/solid games that I don't finish because something about them wears me down and I quit like...
Prince of Persia 2008
Mirror's Edge
Lost Planet

Games that I think suck and I didn't finish (and sold) would be Oblivion and GTA4.

GTA4 ugh i just found it boring and crap...