I'm probably not that far off that number of dates in the last 18ish months, and I have had similar thoughts to you too @HairyArsedMan 
I pay for the apps, as I'm impatient and also have had better results getting likes when I boost my profile at certain times. The thought of buying a lifetime subscription really depresses me, but actually it probably would have been cheaper in the long run given how much I've spent so far on there.
I paid to see my 100ish likes on Tinder the other day, and also did a few boosts which have got me quite a few more likes, and it saves so much swiping if I can see the people who have liked me.
It's interesting to see the comment earlier that a guy paying for membership would put them off - I find it's the opposite way round for me, I assume a woman is taking it more seriously and wants to meet someone for a relationship if she pays for a subscription, rather than just dipping her toe in to see what's out there in the vast swamp that is OLD.
I probably spent a bit too much time on the apps over the weekend, and now have 30 matches on Tinder - of which about 10 replied to my initial message, and I was chatting to 5 or so over the weekend. Those have pretty much all gone quiet now, although I do have a date arranged for Wednesday, and a couple of possibles for the weekend.
I've had a few chats on Hinge over the weekend, of which one seems keen to meet, and I think another may want to as well. Bumble has been rubbish - 2 matches sent me "hey" messages, and neither have replied to my slightly more thoughtful and in-depth replies.
And finally one match on OKCupid who I seemed to get on really well with over the weekend, but I've not heard anything back since Saturday so it seems like another ghosting. It's always the ones I like the look of the most who disappear after a couple of messages :(