3, 4 sort of.
My first was a Lumia 610 I got from a family member in 2012, due to my iPhone 3GS spontaneously combusting and I needed an emergency phone. I disliked it (so much I burnt it for a laugh, I regret that) and 'swore' off Windows Phone and got myself a Sony Ericsson Xperia Play. I still regularly use that Xperia Play for emulators.
Fast forward two years to 2014 and there I was being blown away by my friend's ridiculously cheap Lumia 530. It cost no more than $50 Australian dollars and it just flew on Windows Phone 8.1. Along with Cortana, I was seriously reconsidering. It also helps that the Windows 10 reveal was around that time, so I became hyped for that too and became a Microsoft ****** again (I still remember installing the Tech Preview as my main OS on day one and showing it off. "Hey guys! I have a Start Menu that I didn't need third-party software for!" I still use the Fast Ring previews as my main OS).
This is where I get my 'sort of' phone. Fast forward again a few months to the Lumia 950/XL reveal and I was sold. Unfortunately the $1200 asking price of the 950 XL just wasn't in my price range; but a "brand new" (the quotation marks are key) Lumia 1520 was 'only' $460 on eBay. My rationale was that the 1520 wasn't that much of a downgrade compared to the 950 XL and considering how well the 530 ran, the specs of the 1520 still seemed overkill. I bought the 1520 and awaited it with bated breath. A few days later (it was a Aussie seller) it arrived and within 5 minutes alarm bells were ringing. The battery wouldn't hold a charge, but it turned on. After some sleuthing by my friend (the 530 owner), it turned out the seller was a dodgy seller who passed off fraudulent refurbs as brand new (Bing EvoElectronic, bastards). After a long fight, I eventually got my money back. Since I never really 'owned' it, I guess it doesn't count.
Disappointed but not disparaged about Windows Phone, I decided to take the safe-route and just buy a Lumia 640 from a proper store; it's a Telstra-locked variant that I bought for only $89 AUD which is insanely cheap here; carrier locked ones still go for $160+. And man, it makes me question why I thought I needed 'flagship-power' in the first place. It's so fast, nice looking, has a good screen, damn good camera for the price. I can easily see this thing lasting me 3-4 years tops (also considering how well Lumias get supported with updates). Going from my Xperia Play to this 640 was mind-blowing.
My fourth but not final is a Telstra-locked Lumia 532 I bought two-weeks ago for a laugh (and to have a backup WP) and, like the 530, you'd be hard pressed to think it's an ultra low-end phone that's a year old. Considering it's price competitors (the 532 was $30 on sale), it blows them out of the water ten-fold. And actually gets updates.
TD;LR: A burnt 610, dodgy 1520, glorious 640, surprising 532.
EDIT: All these spelling mistakes, I shouldn't have wrote this at 12am at night.