Quite an interesting thread and lots of pretty pictures! :thumbup:
To the OP - My investment so far has all been based on function and budget.
For my original set up I bought a GC2 refurb deal for about $3k.
For cues, (4 humans + break cue) I've been buying Lucky, Star, and Player cues, and a few of them have modified weights, ferrules, tips, and/or wraps. Five nice cues for ~$900. Guests use the house cues included with the table.
Now, going forward, I can see that experimenting with different cues, and maybe buying some that really catch my eye, maybe designing a custom - very easy to sink money there on an ongoing basis! But my table? I love my table! I will refelt it, have somebody fix the scoring dials maybe one day, not a lot of opportunity to spend money on the table...