The questions is will you get a fishtales that works 100% for under 3k as estimated by pinside, vs what you will have to pay for a shadow that is playing 100%. The shadow is a great game but you really need a fully shopped example to ensure you will have it playing at full capacity. They are just a much more complex table with a lot more maintence issues, and potential problems.
If you get over the theme and art WCS is certainly bang for your buck. However I would have to agree with others and say whirlwind or other ss machines offer tremendous value. The shot satisfaction on some of these older games blows away any additional features that a dmd or additional toys bring in some of the 90s games. The rule set while not as deep matches the difficulty of the game. Also when comparing dollar for dollar a $3k whirlwind would most likely be in a lot bette playing state then the equivalent $3k FT TS or even BSD.
I really need to find myself a nice playing BSD to see if this is the bang for your buck Grail that it appears. For such a highly praised table it seems to constantly sell for at least 1-2k less then other titles in the list, at least here in oz.
Also DW while I got bored of this table I can't argue against its value, you can get a really nice solid BW table with cool centre toy, for the same price as many b-list data east tables. Plus the theme has some universal appeal.
For players that like widebodies the JD and DM also seem to offer Alist designers at beer prices.
Compared to what we have become use to paying for pinball tables, there is still a lot of value to be had amongst the b list BW.
Personally out of my collection my Tommy gets more play then my wh20, FT, Addams, RS. Tommy and AFM are the only two I play ever night regardless, even though Tommy cost a quarter of the price.
I think with the bang for your buck games, like with new high end purchase it really comes down to what works for you. If you find a game and theme and rules that click and will provide you with the same longevity and enjoyment as much higher end games then grab it. The real difference between a list games and b lost games is the former have wider universal appeal, where as the latter tend to be more individualised in their charm.