Problem is that is where you are now. Not in 3 months when you’ll finally finish upgrading HA to level 10 and researching the last level and that’s assuming you already have all your storage maxed out and enough houses for 300 heroes or the VIP so you can finish those off while upgrading the HA. You should be able to get a couple s1 5* heroes a month by running multiple TC20’s so 6-9 more S1 heroes before then is not unreasonable and odds are they won’t be dupes. Realistically, if that’s where you are with your heroes you are probably more than 3 months away from getting to HA 10.
Just for fun. Try adding up the build time for maxing out all three of your advanced Iron and Food storage, the HA and getting your houses up to 300 recruits. How many months does that add up to? If you are F2P/C2P so you have that few 5* heroes I’m pretty sure the answer is not going to be small.
If HA10 was available earlier it could be handy for those types of cases but they made it so expensive and take so long to upgrade making it extremely late game and then made it pretty useless for late game players.
Personally I’ve been playing for about a year and 9 months so far and have been pretty cheap to play. Only occasionally picking up deals for VIP or doing the buy gems everyone in your alliance gets gems type things. I’ve got a dozen plus S1 5* dupes and I’m only missing two S1 5* heroes but I’m still more than 3 months away from getting to HA 10 because I haven’t finished upgrading my storage and haven’t even started upgrading my SH to 25. I’ve got a couple dozen TC20 pulls sitting in my camps waiting to be collected because I’ve run out of hero space and don’t want to spend my limited supply of gems on more space but I also haven’t done the 20 pulls I have gems for because I would only have space to keep a couple of them. I’m still hoping that SGG will do something to make the dupe 5* heroes have some sort of value so I’m still holding on to them.