I'm level 3, not 2 (see siggieh). I also got a pretty good team already (see team showcase, New Team, last page) and that's why i discarded going for scouts (expecially since i got nothing worth atm) since would be quite better to wait next season anyways.
But i got 3-4 youngsters on 19 years old age which are already Q30, and very fast levelers. It'd be very possible for me to take them to 35 or even higher by next season, which would spare me lots of troubles even if going to be just reserves. As for sparing, it'd be not that fun to just pay use-and-trash one year players to just win the league. I see lot of people which missed the new season market opening (lots of 18-19 yo 5 stars) having to count on lower rate players on market now (so far i saw a 25 as peak, two players on 29 once).
Also, consider i play on a new server which lacks people discharging players with high stats and age. The 30's yo are all around 25-29. at max if you get lucky. So either you spend a white night for the season opening, or you buy scouts, or you struggle. As for me, i spent about 100 tokens for my current team this season. Half of it was a scout, 25 tokens were to buy some more cash, and the rest went into bidding. Of 6 players i bought, one costed me 12 tokens, one 5, one 4, one two, and the last two one each.
That is true ONLY when you are forced to buy youngster that you plan to power level. But if you already bought them (last season or pre season) like i did, you can make the calculation alone: 46 tokens for 50 Health packs, plus the ones you earn daily and the ones kept apart are enough to get a fast 19 yo trainer to get a 6th star, and most of times extremely close to scouts.
Pros: you spare 25 tokens from investements, which you can reinvest into power leveling. For every twoyoungsters you powerlevel instead of going for scouts, you earn 50 "free" rest packs to invest on a third youngster.
Said youngsters are 6 stars, same level of scouts or few 2-3 points behind a 7 star scout. But AT BEST scouts are 22 yo (and it's not sure the scout you need will be the youngest nor the strongest) so already out of fast pace training, while you got 19 years old which counting the current season can power level at their climax for 3 whole years. In the end, even if you power level them just once, they'll surpass the scout anyways. I took a 23 yo ST scout last season and without injuring once as of today he went from 34/9 to 36/2 now, a slowass.