I like the higher buy limits in the used market in general, but there's a flaw.
In DTM the game is barely on year 2 and the used market is tight tight tight, practically nothing for me and I have 5 fleet types. Yet recently I was able to buy 4 planes in a day, so could hoover up an already tight market due to my size.
Suggestion - that the old limits of 3/7 days apply to non-private planes just dropped in the last, say, 7 game days. And that ALL bought planes go towards the 3 limit. So if I've just bought 3 planes off a mate I can't buy any used planes that have been on the market less than 7 days.
That way we get the QoL of the improvement, but cannot hoover a tight market.