Happy New Year, Private,
You have picked two nice condominiums, however, you are comparing apples and oranges. That is because one is a high rise in Philadelphia and the other is a garden condo in Montgomery County.
1. If you work in Philadelphia, you will have to pay the city wage tax one way or the other. People who work in the suburbs tend to try to avoid living in Philadelphia, because of the high wage tax.
2. If you enjoy apartment style living, you would be pleased at the Imperior Manor, Elkins Park House, Beaver Hill, etc. If you like something that is more like your own home you might prefer Valley Glen.
3. Condo fees at these large condo projects are typically very high. This is often because they include heat, doorman, etc. They have been falling in value in recent years because the average buyer does not want to pay, or is not able to pay, high condo fees. Consequently, the sale price of the condo is lower, but the monthly payment is higher because of the fees.
4. In recent years, many persons seeking an "over-55" community type lifestyle have gravitated to condos like Imperial Manor, Beaver Hill, Elkins Park House, etc. They offer security, some times bus transportation to shopping, etc. If you are a younger person who does not need assistance with transportation and other issues, you will be paying for services which you don't use.
5. Condo sale prices have been falling in spite of the first time buyer stimulus. That is because most of the first time buyers are not interested in paying condo fees, but would rather have a home. This factor influences future resale value for you.
In closing, it's all about lifestyle. If you are planning to stay there for over 5-10 years and would like a more carefree existence - a condo could be for you. The fees at Valley Glen tend to be lower than most places and they are typically easier for resale, in my opinion.
If you need further help or consultation, don't hesitate to contact me.
Happy New Year and good luck!