When I bought my home table and started playing again, I bought a $300 McDermott and an I-2 shaft. It wasn't fancy, but it was nice enough and gave me something to practice with. I've since bought a used custom Viattorre, with snakewood, ivory, ringwork, leather wrap, etc ... exactly what I wanted a cue to LOOK like.
I still shoot better with my simple McDermott and honestly I can't figure out why. I like the Viattorre way more, it's exactly what I've always wanted, it's straight, it feels good, I had a new tip put on it , it has a 314-2 shaft (used to use a I-2 on the McD so I'm used to LD shafts) ... I just don't know!
I keep telling myself I just have to get used to the lower deflection of the 314-2 versus the I-2, I have to get used to the different weight (the McD is 1.5 oz lighter), I have to get used to the leather wrap instead of linen, etc... but deep down inside I know these are all just excuses. I can pick up a house cue and shoot better than the Viattorre for some damn reason ... but I STILL use the Viattorre cause I love it so damned much and refuse to give up on it.
Unless I started shooting 3 balls better with a junky stick, I'd still keep using what I LIKE, because well ... I like it!