trust me you will not stop
all the things I use to do by hand
I already need a bigger one but keep the little one for my small production maybe cnc it . How old is the lathe you got and what type ? If you use the lthe more I'd get that and a small drill press then go for a mill
makes life much easier
I've pondered a 3 in 1 for a year till I saw 1 ( no thanks ) they're all made by the same co. just different brand names so the lower the price the poorer the quality . now for me I'd start looking for an old tool room lathe (usa made) with the exception of the ways any sloop can be adjusted out .thats my opinion but it comes to what you expect to achieve and do with it .
IHSteve