I'm just starting out, but I can already see a trend where my tastes lie. I seem to go mainly after mid-century models. I do find the treadle machines beautiful, but when I saw a Singer Rocketeer I knew I'd have to get one some day. I also want an Elna Grasshopper. I know Singers will always have a special place in my heart.
Alright - now I just need to win multiple mega-millions lotteries so I can buy a big old Victorian house to store all my machines in