Among reloaders that I know, I'm pretty new since I've only been doing it several years and well over 30,000 rounds by now (maybe more like 75k, but I've honestly lost track). :agreeclen
I use a Dillon 650 progressive press, and can't imagine doing anything different. I love the Dillon 1050 in concept, but setting up a single new caliber runs in the $400+ range (I think... it's been a while since I priced it) which is nutty. The only less expensive alternate progressive press that I feel like I can recommend is the Hornady. Every other progressive I reviewed had significant operating issues. Back to the Hornady: I could only find 2 weak points on the press; so I think it is very likely a win, and it will be a little less expensive to get into relative to the Dillon 650. Where there is a REAL win is for adding new calibers. Hornady made it ridiculously inexpensive to add new calibers. On the flip side, adding calibers to the Dillon 650 costs a bit more, but I think the set-up is higher quality and SAFER (with the Dillon you can set up a dedicated powder drop for each caliber... this is NOT the case for Hornady or, I think, any other press. To put this in perspective, this issue is, from my limited experience, the number 1 cause of reloading errors that end in injury, property destruction and the BOOOOM that every reloader is afraid of. I felt that was important enough to put the extra money into a Dillon).
There's definitely a place in a reloader's world for a single stage press. So if you want to start there, you could give the RCBS Rockchucker a go and see if you like reloading (Lee also makes a GREAT starter's set up with a single stage press... however, I highly recommend that you not get the Lee progressive. It has issues that I didn't discover until I did a deep review on it's schematics... otherwise it was running neck-in-neck with the Hornady).
Have fun and good luck. Let me know if you have any questions.