@Kenneth Hayes - Pro is good if you're planning on posting deals on the Market Place. It's also good if you plan to e-mail multiple colleagues at once. You can also go back and search your e-mails with Pro. I feel (and I could be wrong), Pro is geared more towards wholesalers or investors selling their deals. I believe you can also put your signature at the bottom of your post, which then potentially generates leads, at minimum makes it easier for others to see how to contact you or your website.
If this was your only avenue for finding deals from others, the perhaps having the SMS notification might be nice. That however goes to your e-mail anyway and you get setup an alert, which you would then jump on that deal right away anyway.
I am currently not trying to get anyone to my website, nor do I use this as my only avenue to find deals. I use this to find information. I can still search post, chime in where I can, and follow up with persons I see post. I'll make some personal contacts from there if I feel they may help me down the road and vice versa. From there I may give some quality wholesalers my contact information but I usually watch people closely so not to have people wasting my time with worthless deals. As a plus member you can still access files if you need them. Post on the Marketplace once in a while if need be. I suggest at minimum a Plus membership. Check out the files you can download. Continue being active on here and then as you grow make the decision if Pro is necessary.
Again the above was my view, because that's how I utilize Plus. As I grow and soon adopt another website, I'll likely upgrade.
Best of luck sir. I've seen some of your other post. keep up the good work