I really don't shoot enough to be able to tell the difference in shootability. It would more than likely just be something fun to pull out at the range from time to time. I would have a hard time paying more than $1000 for one.
check out the jericho 941, it's an israeli cz75 clone. it's
still in production but i think the rail on the new ones makes it look ugly as hell lol. there's surplus israeli police ones commonly available, i got one earlier this year for $350 from classicfirearms.com, if you don't mind a gun with a scuffed finish this is the way to go. if you want it in .40 you can go for the one marked "uzi eagle," these are pretty rare but go for around $400 plus the styling is peak '90s aesthetic. in the review below he spends a lot of time complaining about the safety but if you buy any post-1991 model it'll be in a normal place.
tanfoglio makes another cool clone called the
witness, these come in 9mm and 10mm and are around $550. or if you want a .45 you can get a
cz97b, around $650. all three of these have solid weight and are so fun and smooth to shoot, the jericho trigger in particular is really nice.
and as for 1911s,
the sig you shot is hard to beat for the $1k ticket, that's a great choice to get into those, i'd compare it to the
sti trojan which is a lil more expensive.