Valley Forge/Collegeville Breakfast/brunch?
You might want to try Michaels deli in the Valley Forge shopping center (which is really King of Prussia area). Good deli and breakfast food-I believe you can get breakfast all day.
I gotta think there are many places in Phoenixville (which is quite near Collegeville) that would suit. You might want to read the recent discussions on the Phoenixville thread.
And, although I may get kicked off of chowhound for mentioning it, there is a good Bob Evans in Oaks, which is the exit before Collegeville on 422.
If you go the other say on 422 (west) one exit, you come to Royersford. Take a left on Township Line and go through the town you will come to Annmarie's Place, which is supposedly a fabulous breakfast spot. Some days there is actually a line out front.
Try deeg's on germantown pike. It's right over the collegeville bridge at the fork you go to your left. It's on the left hand side and is a house converted into a restaurant. It's small so you might miss it. I go there all the time. A million times better than the collegeville diner
Nudy's in Phoenixville (Bridge St) I think is your best bet for solid inexpensive.
Annemaries in Royersford (although check the times, I was there & they stopped at 12)
Classic Diner is great but a bit pricier & always a line.
Black Lab & Iron Hill in Phoenixville- Sundays only
Collegeville has a few diners- but I've only passed them, never eaten there.
Bookend Cafe & GLodge in Phoenixville(on route 23) are other choices