No, having 20 servers ping your server is simply a case of OCD. Like needing to triple check you switched the lights off in the house before you left. And there are another important considerations:
My script is free to use forever - Whereas you need to pay every single month.
My script is easy to add more urls to - Whereas you have to repeatedly deal with irritating GUI's and login to multiple locations
If you really do get a lot of random downtime it means the uptime "servers" (aka 128mb ram VPS's) the monitoring sites are using all cost < $20 bucks p/m. What do you expect. Of course a few will lose network connectivity every now and then. Anyway I've explained the benefits and the reasoning of why having a zillion sources is not required - but also how you can achieve that effect with this script if you suffer from mild OCD.
My script is free to use forever - Whereas you need to pay every single month.
My script is easy to add more urls to - Whereas you have to repeatedly deal with irritating GUI's and login to multiple locations
If you really do get a lot of random downtime it means the uptime "servers" (aka 128mb ram VPS's) the monitoring sites are using all cost < $20 bucks p/m. What do you expect. Of course a few will lose network connectivity every now and then. Anyway I've explained the benefits and the reasoning of why having a zillion sources is not required - but also how you can achieve that effect with this script if you suffer from mild OCD.