Well, situation was solved in best kind of way, I received all the quests eventually. :D
In short, there is one difference between explanation offered in "simpsonstappedout" wiki and actual situation. As someone suggested, this was probably changed during "Whacking Day" update and this is the difference:
- although "King Toot's" is listed in game as triggered by both Level 17 and "We Don't Sell myPods pt. 2" quest, the "We Don't Sell myPods" quest chain itself is triggered at level 18 and/or after successful finishing of "Miranda Rights" quest chain and/or possibly the quest "The Only Sport America Still Dominates" (which is possible to get at level 17)
Long story, chronology:
1. two days ago I had finished the building of police station (part of level 17 "Miranda Rights" quest chain), and wondering why I didn't yet received the other level 17 quest chain, "We Don't Sell myPods". At this point principal Skinner was unavailable as he was tasked by the game with some important 24 hour bird watching duty (but he was there all the previous time when I reported problem, earlier in the level 17).
2. after I finished Police station, I received chief Wiggum and also I was tasked with level "The Only Sport America Still Dominates", eating competition between Homer, chief Wiggum and Comic book guy, which is supposedly start of level 18 quest chain "As American As Apple Pie" (although I am still level 17). Skinner still watching birds.
3. after finishing this eating competition task yesterday morning, I had no further major tasks. Skinner still watching birds.
4. still yesterday, level 18 finally. With majority of my characters free (with exception of principal ornithologist) I received task "build Luigi's" and started immediately. At this point I expected that I will receive "As American As Apple Pie pt 1.", but I didn't, which got me a little bit worried.
5. finally principal Skinner finished watching of birds and - ta-daaaam - he prompted that Lisa should practice sax, which is start of "We Don't Sell myPods" quest chain.
6. I started to build King Toot's this morning (part 2 of same quest chain). At this point I expected that I will get task chain "As American As Apple Pie" after I finished King Toot's
7. But even better, I finished today building Luigi's, King Toot's is still in progress, and Comic book guy started with giving me "Apple Pie" tasks. Very soon I reached part 3 and started to build Skip's Dinner.
So I am guessing "We Don't Sell myPods" quest chain is not triggered early in the level 17, but rather later at some point, after events I described in point 2 (finishing "Miranda Rights" ), point 3 (finishing "The Only Sport America Still Dominates" ) or point 4 (leveling up to level 18 ) - which one of those, can't really tell because Skinner was not available all this time.
So I built 3 buildings in short time, lucky for me I had some extra cash.
Thanks for all the help people. :D
Regards, nedimaz