So... I'm developing a little skirmish game and will be getting some minis sculpted soon. Talking with a few different sculptors & production companies now and I'm pretty glad that the costs involved aren't nearly as bad as I expected

I'm also looking into terrain ideas too but that is much farther down the line.
Anyhoo. It's fictional theme but based on wild west history and folklore. Once I get the rules finalized I intend to reuse them for other games in the future with different settings, pirates & madmax themes come to mind.
I was thinking it would be cool to have it compatible with other ranges out there so people can find terrain and stuff to match a lot easier and make the game easier to get into. It seems like most historical minis are 28mm tall with "real" proportions. That would go well with a lot of other lines like Foundry's wild west minis or Perrys' american civil war minis.
But,
IMO, 28mm always just feels too small for me. I prefer
GW's style of 32mm "heroic proportions" and that's the feel I want to go with for my stuff. I also prefer the look of Warmachine style rounded edge bases, and they're a 30mm diameter which would look way too big on a 28mm figure. I know it's only a 4mm difference but to me it's pretty noticeable.
Will scale even matter? Or will players just want cool models? If you were starting a new game, what would be more important to you.. how cool the models are or how easy it is to get into with minimal investment?