i bought many of my store worlds years ago, before the bundles were a thing, and i own all standard versions except dragon valley and midnight hollow (my favourites).
i do think $40 is a bit on the high end, especially considering that the game is nearly 10 years old. but i've gotten my money's worth over the years.
as @TreyNutz mentioned, sunlit tides appears on the daily deal rotation: you can also get lucky palms, barnacle bay, and aurora skies through the make me an offer machine for a nice discount.
if you haven't already discovered it,
this thread is a great way to get the most out of your simpoints.
an accident put me out of work 5 months ago and spending real money on the game isn't an option. but i've added so much stuff to my collection for free or very cheap just by stalking the specials in the above thread. i farm sp from ads (when they work, though they've been broken since the last maintenance) and have been using those to buy things.
you can also join up with
the gifting directory: we send each other pretty things from the store (usually individual items or those from sets that are cys-eligible, in order to make them free on the dd); it's best to keep your wishlist to small items, as most of us are using farmed points; getting a world is a very rare occurrence, though i've seen it happen.
it's mostly the same crowd on both boards; we're pretty friendly, so feel free to stop in and say hi.