Where did you come up with that conclusion? I've never said anything about Lost Sphear being successful or anything. I'm just posting numbers on how good (or bad) the sales are on both the PS4 and the Switch, and which one fared better (or less bad). There's nothing to justify and I think everyone can agree that Lost Sphear flopped hard.
Seems like your conclusion is even more useless than the attach rate.
Alright, simmer down haha.
I apologise for coming across as rude as I did in the post. I didn't mean to, I just typed it in a bit of a hurry and didn't have chance to edit it much.
My point is just that... I don't understand the attach rate thing at all. Like, I don't even understand why it gets brought up as I have no idea what can be concluded from it at all.
It only ever happens when consoles are new on the market, because that's why you get skewed attach ratios because there's less hardware. And it's nearly always done with software which sells to an inconsequential amount of people that doesn't really rely on large hardware numbers.
Let me provide an example for what I know (which is Vita, because that's the console I've most closely followed the sales of for the past five years).
Ys Memories of Celceta released in 2012 and sold 42,146 FW on a hardware of 994,162. Which is an attach ratio of 4.24%.
Ys Lacrimosa of Dana release in 2016 and sold 43,753 FW on a hardware of 5,099,108. Which is an attach ratio of 0.87%.
Does that mean Memories of Celceta was 4.87 times more successful than Lacrimosa of Dana because it sold to a higher percentage of the console's userbase? Of course not.
So what conclusions can we draw from attach ratios?
That games which flopped when hardware numbers are lower would be more successful when hardware numbers are higher? No, because software sales for niche games don't sell in a linear manner like that.
That Switch is a better software environment for certain types of titles than PS4 is and vice versa? That conclusion can be drawn by just looking at the actual number of software sales; attach ratio tells us nothing extra.
That a game (in this case Lost Sphear) bombed on PS4 but bombed less on Switch? I mean, you've answered that one yourself. Square aren't gonna look at those numbers and think "ahh well, at least it sold more decently on Switch relative to its userbase!" It bombed everywhere.
(I mean, think of an example of Monster Hunter. Imagine if MonHun something released Vita and somehow managed to sell ~ 1.5m copies giving it a > 25% attach rate; but on 3DS it would have sold ~ 4m copies giving it a < 20 % attach rate, Capcom aren't going to look at that and be happy).
Hence why I pointed this whole thing out. Again, I apologise if it came off as an attack on you, I've just homed in on your post since it's the most recent on the subject. After 6+ years of browsing Japanese sales threads across various places and seeing attach ratios brought up again and again and again, I just don't get it at all. And I vented all that in my previous post.